1. I must go now because I am already late for my class.
А. must
2. They don't have to do their homework today because it is a holiday at the school.
C. don't have to
3. I ought to help you with your shopping because you have a lot of bags.
B. ought to
4. When will you be able to come and see us in our new house?
B. be able to
5. Can you come over for dinner on Friday night? I really want to hang out with you, so I hope you can come.
A. Can
6. He wouldn't give me a straight answer. He avoided my questions the whole time.
B. wouldn't
7. I couldn't understand him because I don't speak French. So, we used body language to communicate with each other.
B. couldn't
8. You should have called me first. I would have picked you up from the auto repair garage.
A. should have
9. We've worked long and hard today. Shall we call it a day?
C. Shall
10. I can see that you have a hole in your sneakers. You need a new pair of shoes.
A. can
Exercise 3. Complete at least eight of these sentences. showing that you have understood the different uses of 'double' nouns.
1 Diamond-shaped biscuits were in the vase.
2 The diamond cost a lot.
3 Glass pollutes the soil.
4 The glasses are made of glass.
5 Light she was and like a fairy.
6 A light didn't provide enough light.
7 The country is rich in iron.
8 The iron was very hot.
9 Man transforms the Earth.
10 A man came in.
11 Science and technology are developing very fast.
12 History is a science studying relationships of nations.
