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BI TP TH QU KH HON THNH V QU KHN

Ex: Past perfect vs past s!p"e

1. Almost everybody (leave). by the time we (arrive)

..

2. He (wonder). whether he (leave).

his wallet at home.

3. The secretary (not leave). until she (finish)

. her work. The coule scarcely (enter)

. the house when they (be!in). toar!ue.

". The teacher (ask). the boy why he (not do)

. his homework.

#. $he already (ost). the letter when she (reali%e)

. she (send). it to the wron!

address.

&. Hardly the car (!o). a mile when it (have)

. a flat tyre.'. The weather (be). far worse than we (eect)

..

. They (be married). for five years when thy finally (have)

. a child.

*. +o sooner they (sell). their car than they (re!ret)

. havin! done so.

1,. -hen she (finish). her work she (!o)

. to the cinema.

11. He (not eat). until his arents (come)

. home.

12. $he (tell). she never (meet).

him.

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13. He (do). her homework before he ( !o)

. out.

1". The li!hts (!o). out the moment he (!et)

. into the cinema.

1#. Hardly the holiday (be!in). when they (leave)

. the town.

1&. They (be). out for an hour when it (start)

. to rain.

1'. They (leave). the sho as soon as they (buy)

. everythin! they (need)..

1. The house (burn). to the !round buy the time the

firemen (arrive)..1*. As he (do). a lot of work that day he (be)

. very tired.

2,. already (hear). about the accident when he (tell)

. me about it.

21. He (live). in the country for ten years when he first

(come). to /ondon.

22. (not talk). to him because when (arrive)

. he already (leave)..

23. -hen we (!o). out a!ain0 the wind (sto)

..

2". He (think). he (win). in the

lottery but he (not have). of course.

2#. +o sooner the bell (rin!). when the uils (!o)

. out to lay.

2&. efore you (mention). his name0 never (hear). of this oet.

2'. ur !uests (be). still here when he (come)

. back from school.

2. The same day he (arrive). (receive)

. a ostcard from him.

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2*. They ust (close). the sho when (!et)

. there.

3,. -hen the oliceman (blow). his whistle the driver

(sto). the car.