jEXERCISE ON TENSES
*Give the correct form of the verbs in brackets:
1. I (not see)..............him since last Monday.
2. They had sold all the books when we (get)......... there.
3. I think he (leave)..............as soon as he (know)................the new.
4. When my friend grows a beard, even his closest friend (not, recognize).........him.
5. I (never read)......a story that interested me so much as the one I (read)........last night.
6. He (sleep)..............so he couldn`t understand what you said to him.
7. I (finish)............the book before my next birthday.
8. I (wait)...............for you at the hotel at midday tomorrow.
9. He said he (do).............his homework since 7 o`clock.
10. They (build)...............a new house in this corner of the street right now.
11. How many films...............you (see).................this month?
12. When George (come)................this afternoon, he (bring)..............his friends.
13. I (speak)............ to you about that matter after the meeting tonight.
14. They (not, come)............home until they (see)..........everything.
15. His health has improved since he (leave).............India.
16. Where you (be)............all this morning? It`s nearly midday now.
17. Where are you?-I`m upstairs. I (have).................a bath.
18. When I (come)............... to see them last night, they (play).............the guitar.
They (say)............they (play)................since six o`clock.
19. This morning when I (get).........to the station, I (learn)...............that the train I had
expected to get (leave).............ten minutes before. The station- aster (tell).........me
that the timetables(be)................altered the previous week.
20. He(give)..............me back the book two days ago,(thank)............me before lending
it to him and say..............that he (enjoy)............it very much, but I(know)........that
he(not read)............because most of the pages(be)............still uncut.
21. Do you think they (be)............back by 8.30?They(go).......... for nearly an hour and
I(be worried)...........that something might have happened to them.
22. Jane and Felix (get)..............married one Saturday in March. They had met only a
week earlier at the party and (fall)..............in love. Jane (ring)..............and told her
parents her news after the wedding, when Felix(move)................into her flat.
Her parents (be)............surprised and angry because she (not, tell)...........them
about the wedding.
23. My stay in England is coming to an end. In ten days` time I (be)..........back in Italy.
I can hardly believe that I (be).........in Bristol for three months. The time (go).........
so quickly! Yesterday I (take).......my final exams. As soon as I (get).....the results,
I (let)..............you know. I`d really like to have a holiday when the course finishes,
but I have to go straight back to Italy. If I (have).............more time, I (visit)…........
Scotland. Unfortunately I (not see).........much of Britain, I..........even (not be).........
to London yet.
24. At last, fire man have put out a big forest fire in California. Since then, they (try)…
.......to find out how the fire (begin)............ Forest fires (be).............often caused by
broken glass, by cigarette ends which people carelessly (throw)..........away.
Yesterday, the firemen (exam)........the ground carefully, but (not be)............. able
to find any broken glass. They (be)...........also quite sure that a cigarette end (not,
start).............the fire.
25. The police (investigate)...........the bank robbery which(take)...........place last week,
but so far they (discover).................nothing much.

II/ SEQUENSE OF TENSES - SUBORDINATE CLAUSE
(Sự phối hợp thì giữa mệnh đề chính và mệnh đề phụ)
Main clause Noun clause
Qui tắc 1 Simple present Simple present/present perfect
Simple future/near future
Qui tắc 2 Simple past Simple past/past perfect
Future in the past
(Would/was/were going to + Inf )
Qui tắc 3 Present perfect Simple present