BÀI TẬP TỰ LUẬN

PRACTICE EXERCISE 4
Supply the correct tense of the verb in brackets.
1. Terry must have believed that fares (go ……………. ) up or he (not buy…………….) a season ticket.
2. Everyone’s future depends on the whole world (concern) ……………. about the ozone layer.
3. It (look) ……………. as if this light (burn) ……………. all night. I must (forget) ……………. (switch) ……………. it off before I (go) ……………. to bed last night.
4. Please stop (make) ……………. that noise, it (drive) ……………. me mad.
5. By the end of this week my illness (cost) ……………. me $ 100.
6. I (be) ………. not able to join them in the bicycle ride into the country. I (lend) ………. John my bike the day before.
7. Coming up to the desk he (take) ……………. the key that (leave) ……………. there by the doorman and (start) ……………. up the stairs to his room. Inside he (find) ……………. that the letters (be) ……………. not where he (leave) ……………. them. His room (break) ……………. in while he was out.
8. Writing many letters (make) ……………. her happy.
9. He (work) ……………. on the report when you (arrive) ……………. this afternoon.
10. I know, but I can`t help (have) ……………. a cup of tea after dinner. It is one of my greatest pleasures since I quit (smoke) ……………..
11. Present day problems demand that we (be) ……………. ready for any emergency.
12. Their boss reports that they (have) ……………. no trouble with the machine.
13. That man (teach) ……………. in this school since 1989. Before he (come) ……………. here, he (live) ……………. in Dalat. Now he (live) ……………. in the suburbs and come to school everyday on his bicycle.
14. The car (travel) ……………. at full speed when it approached the corner.
15. Despite the city’s many attractions, Laurine (prefer) ……………. his cottage in the countryside.
1. were going – wouldn’t have been buying, 2. being concerned 3. looked , had been burning , have forgotten , switching, went 4. making , is driving
5. will have cost, 6. was - had lent 7. took - had been left - started - found - weren`t - had left - had been broken 8. makes 9. will be working – arrive 10. having - smoking
11. be/should be 12. have had 13. has been teaching , came, had lived, comes 14. was travelling 15. prefers
Put in the appropriate verb (Combinations with off and on).
1 The fireworks . . . off with such a noise that we were nearly deafened.
2 The trade talks which had begun between the two countries were . . . off when the fishery dispute began.
break off (tr or intr) = detach or become detached:
He took a bar of chocolate and broke off a bit. (broke a bit off/broke it off)
A piece of rock broke off and fell into the pool at the foot of the cliff.
break off (tr) = terminate (used of agreements or negotiations):
Ann has broken off her engagement to Tom. (broken her engagement off/broken it off)
break off (intr) = stop talking suddenly, interrupt oneself:
They were in the middle of an argument but broke off when someone came into the room.
3 He... off on his journey.
set off (tr) = start (a series of events):
That strike set off a series of strikes throughout the country, (set them off)
set off/out (intr) = start a journey:
They set out/off at six and hoped to arrive before dark. `for` is used when the destination is mentioned:
They set out/off for Rome.
4 I can`t hear you. Do . . . off that vacuum cleaner.
5 The astronaut found the experience of weightlessness strange at first but the feeling . …….. off after a time.
wear off (intr) = disappear gradually (can be used literally but is chiefly used for mental or physical feelings):
These glasses may seem uncomfortable at first but that feeling will soon wear off.
When her first feeling of shyness had worn off she started to enjoy herself.
He began to try to sit up, which showed us that the effects of the drug were wearing off.
6 The candidate . . . on everyone in his constituency and asked them to vote for him in the impending by-election.
call on somebody (usually + infinitive) = ask him to do something/ask him to help. This is a rather formal way of making a request and is chiefly used on formal occasions or in speeches etc. There is usually the idea