We use mobile phones for almost everything now. Gone are the days when we used them for only calling. Now, our lives revolve around it. They come in use for communicating through voice, messages, and mails. We can also surf the internet using a phone. Most importantly, we also click photos and record videos through our mobile’s camera.
The phones of this age are known as smartphones. They are no less than a computer and sometimes even more. You can video call people using this phone, and also manage your official documents. You get the chance to use social media and play music through it.
We see how mobile phones have replaced computers and laptops. We carry out all the tasks through mobile phones which we initially did use our computers. We can even make powerpoint presentations on our phones and use it as a calculator to ease our work.
Sure, here is a step-by-step solution to the exercise:
1. (meet) _Have you met_ Sally today?
To determine which tense to use, we consider if the action is completed or ongoing. In this case, meeting Sally is a completed action that happened at some point in the past. Therefore, we use the Present Perfect tense. We combine the auxiliary verb "have" with the past participle of the verb "meet" to form "have met."
2. Harry has been working for six hours, but he (not, finish) _hasn't finished_ the painting yet.
Here, we have an ongoing action that started in the past and continues up to now. To express this, we use the Present Perfect Continuous tense. We combine the auxiliary verb "have" with the present participle of the verb "finish" to form "hasn't finished."
3. Where do they live? - I know that they (move) _have moved_ to India.
Again, we are referring to a completed action. The fact that they moved to India happened at some point in the past. We use the Present Perfect tense by combining the auxiliary verb "have" with the past participle of the verb "move" to form "have moved."
4. I (practice) _have been practicing_ playing the violin for 2 hours! I'm so tired!
Here, the speaker expresses an ongoing action that started in the past and continues up to now. We use the Present Perfect Continuous tense by combining the auxiliary verb "have" with the present participle of the verb "practice" to form "have been practicing."
5. They're enjoying it! They (not be) _haven't been_ to a concert like this before.
This sentence is in the negative, stating that they have not had this experience before. Therefore, we use the Present Perfect Continuous tense. We combine the auxiliary verb "have" with the present participle of the verb "be" to form "haven't been."
I hope this explanation helps you understand the use of Present Perfect and Present Perfect Continuous tenses in the given sentences. Let me know if you have any further questions!
1. My grandpa is going to have the worker water his grape plantation.
Explanation: The sentence is in the future tense and the subject (grandpa) is going to have someone (the worker) do something (water his grape plantation).
2. I am going to have my eyebrows dyed. What about making them lighter?
Explanation: The subject (I) is going to have something (eyebrows) done (dyed), and suggests a possibility of making them lighter.
3. Dad stayed in bed. The doctor had him stay in bed.
Explanation: The sentence is in the past tense and the doctor had the subject (dad) do something (stay in bed).
4. My cousin had my elder sister check the task of the mathematics exercise. She likes to solve problems in probability theory.
Explanation: The subject (cousin) had someone (elder sister) do something (check the task) and gives additional information that the sister enjoys solving problems in probability theory.
5. I am going to have Alex look at my laptop. Perhaps he is able to repair it.
Explanation: The subject (I) is going to have someone (Alex) do something (look at the laptop), and suggests that Alex might be capable of repairing it.
6. Why is she going to have the hairdresser dye her hair?
Explanation: The sentence is in the present tense and asks a question about why someone (she) is going to have the hairdresser do something (dye her hair).
We use mobile phones for almost everything now. Gone are the days when we used them for only calling. Now, our lives revolve around it. They come in use for communicating through voice, messages, and mails. We can also surf the internet using a phone. Most importantly, we also click photos and record videos through our mobile’s camera.
The phones of this age are known as smartphones. They are no less than a computer and sometimes even more. You can video call people using this phone, and also manage your official documents. You get the chance to use social media and play music through it.
We see how mobile phones have replaced computers and laptops. We carry out all the tasks through mobile phones which we initially did use our computers. We can even make powerpoint presentations on our phones and use it as a calculator to ease our work.