1) d
2) a
3) b
4) f
5) e
6) c
II. Infinitive. Use particle “to” where necessary.
1) I think you ought to… apologize.
2)Make him … speak louder.
3) Help me … carry this bag.
4) My son asked me …to let him …to go to the theatre.
5) I must … go to the country.
6) It cannot … be done today.
III. Modals. Fill in can, may, must.
1) She can… translate the article into Russian.
2) He must… at the Institute at 9 o’clock.
3) We must… get home before it gets dark.
4) He …may come tonight but I am not sure.
5) …may have another cup of tea?
6) I …can easily carry this bag to the station.