Ex. 60, р. 469 1. Modal. 2. Auxiliary. 3. Auxiliary. 4. Modal. 5. Modal. 6. Modal. 7. Auxiliary. 8.
Modal. 9. Auxiliary. 10. Modal.
Ex. 61, p. 469 1. I'm sorry that I kept you waiting, but I had to call home and say not to
expect/tell them (my wife, etc.) not to expect me for dinner. 2. Eventually/Finally we
decided that we shouldn't stay there any longer and should go to the mountains. 3.
You must dress in your very best, I want you to impress everyone as favorably as
possible. 4. You should/ought to have done your homework properly. Then you
wouldn't have had to ask such questions. 5. You needn't have waited so long. You
should/ought to have left me a note. I would have done all you wanted. 6. They must
be working in the laboratory. We/You/One shouldn't bother them. 7. "Why didn't you
come yesterday?" — "I was to meet my first cousin at the railway station." — "Then
you should/ought to have phoned so that we shouldn't wait for you." 8. Do whatever
you like, I'm not going to stand in your way, besides I am to leave soon. 9. The party
should/ought to be interesting. It took the students so long to prepare for it. 10.
There's nothing funny in what he said. You should/ought to/must be more serious.
11. He will have to work here while the laboratory is being renovated (while the
laboratory equipment is being repaired/is under repair). 12. You said it in/for fun, but
she has taken offence. You should/ought to/ must be more considerate. 13. It took us
all day to prepare for their arrival. Everyone had to do something. 14. Such people
should be/ ought to be admired. 15. It didn't occur to me to talk to him though it
should have. 16. Don't allow the children to play in my room. They will turn
everything upside down, and you will have to tidy up. 17. You needn't have bothered
the professor. I could have given you all the necessary information. 18. They should/
ought to have kept him from such an unwise action. They are going to be sorry about
it./They will wish they had. 19. I am sticking/keeping to the directions I have
received. I know full well what I am to start with.