Rewrite the sentences in the passive. 1.The workers were fixing the dam 2.Researchers will monitor the penguins 3.They need to plant more trees to save the forest 4.The class adopted a giant panda
1. John's knowledge of mathematics left much to be desired.
Explanation: In this sentence, we are talking about John and his knowledge of mathematics. We want to describe John's knowledge using the verb "know". However, since we are talking about the past, we need to use the past tense of the verb "know", which is "knew". So, the correct form would be "John's knew of mathematics left much to be desired."
2. I began to feel overwhelmed by work: I felt as if I wasn't able to do it.
Explanation: In this sentence, we are talking about how I started to feel overwhelmed by work. We want to describe the feeling of not being able to do the work using the verb "to be able to". However, since we are talking about the past and expressing a negative feeling, we need to use the negative past tense form "wasn't able to". So, the correct form would be "I felt as if I wasn't able to do it."
3. It can't rain here now. I heard the weather forecast.
Explanation: In this sentence, we are talking about the present situation and expressing a negative possibility or inability for it to rain. We want to use the verb "to rain" in the negative form, which is "can't rain". The reason for using "can't" instead of "won't" or "doesn't" is because "can't" expresses the idea that it is not possible for it to rain, not that it won't or doesn't rain based on other factors. So, the correct form would be "It can't rain here now."
Practice 1:
1. cheap - cheaply (adverb) - cheaper (comparative) - cheapest (superlative)
Explanation: The adverb form of the adjective "cheap" is "cheaply." To form the comparative degree, we add "-er" to the adjective, resulting in "cheaper." To form the superlative degree, we add "-est" to the adjective, resulting in "cheapest."
2. heavy - heavily (adverb) - heavier (comparative) - heaviest (superlative)
Explanation: The adverb form of the adjective "heavy" is "heavily." To form the comparative degree, we add "-ier" to the adjective, resulting in "heavier." To form the superlative degree, we add "-iest" to the adjective, resulting in "heaviest."
3. fast - fast (adverb) - faster (comparative) - fastest (superlative)
Explanation: The adverb form of the adjective "fast" remains the same. To form the comparative degree, we add "-er" to the adjective, resulting in "faster." To form the superlative degree, we add "-est" to the adjective, resulting in "fastest."
4. good - well (adverb) - better (comparative) - best (superlative)
Explanation: The adverb form of the adjective "good" is "well." To form the comparative degree, we use the adverb "better." To form the superlative degree, we use the adverb "best."
5. serious - seriously (adverb) - more serious (comparative) - most serious (superlative)
Explanation: The adverb form of the adjective "serious" is "seriously." To form the comparative degree, we use the phrase "more serious." To form the superlative degree, we use the phrase "most serious."
6. wonderful - wonderfully (adverb) - more wonderful (comparative) - most wonderful (superlative)
Explanation: The adverb form of the adjective "wonderful" is "wonderfully." To form the comparative degree, we use the phrase "more wonderful." To form the superlative degree, we use the phrase "most wonderful."
2.
1. Laura won the competition because she danced more beautifully (comparative).
Explanation: To complete the sentence, we need to use the comparative form of the adverb "beautifully" to compare Laura's dance with others'.
2. I watch films more often than sports programmes (comparative).
Explanation: To complete the sentence, we need to use the comparative form of the adverb "often" to compare the frequency of watching films and sports programmes.
3. My sister plays the guitar better than me (comparative).
Explanation: To complete the sentence, we need to use the comparative form of the adverb "well" to compare the guitar skills of the speaker's sister and themselves.
4. Matt's mum helped him, so he finished the homework more easily than us (comparative).
Explanation: To complete the sentence, we need to use the comparative form of the adverb "easily" to compare the ease of finishing homework for Matt and the speaker.
5. Luke's teacher was happy with him because he did the exercise quickly (comparative).
Explanation: To complete the sentence, we need to use the comparative form of the adverb "quickly" to compare the speed of completing the exercise for Luke and others.
3.
1. I didn't arrive home as late as my brother.
Explanation: To complete the sentence, we need to use the phrase "as + adverb + as" to compare the lateness of the speaker and their brother.
2. I don't speak as quietly as my best friend.
Explanation: To complete the sentence, we need to use the phrase "as + adverb + as" to compare the quietness of the speaker and their best friend.
3. My dad eats as slowly as my mum.
Explanation: To complete the sentence, we need to use the phrase "as + adverb + as" to compare the slowness of the speaker's dad and mum.
4. William's sister doesn't watch TV as often as William.
Explanation: To complete the sentence, we need to use the phrase "as + adverb + as" to compare the frequency of watching TV for William's sister and William.
5. Nobody plays the guitar as well as my cousin.
Explanation: To complete the sentence, we need to use the phrase "as + adverb + as" to compare the guitar skills of others with the speaker's cousin, who is the best guitar player in their school.
Explanation: In this sentence, we are talking about John and his knowledge of mathematics. We want to describe John's knowledge using the verb "know". However, since we are talking about the past, we need to use the past tense of the verb "know", which is "knew". So, the correct form would be "John's knew of mathematics left much to be desired."
2. I began to feel overwhelmed by work: I felt as if I wasn't able to do it.
Explanation: In this sentence, we are talking about how I started to feel overwhelmed by work. We want to describe the feeling of not being able to do the work using the verb "to be able to". However, since we are talking about the past and expressing a negative feeling, we need to use the negative past tense form "wasn't able to". So, the correct form would be "I felt as if I wasn't able to do it."
3. It can't rain here now. I heard the weather forecast.
Explanation: In this sentence, we are talking about the present situation and expressing a negative possibility or inability for it to rain. We want to use the verb "to rain" in the negative form, which is "can't rain". The reason for using "can't" instead of "won't" or "doesn't" is because "can't" expresses the idea that it is not possible for it to rain, not that it won't or doesn't rain based on other factors. So, the correct form would be "It can't rain here now."