exercise1: choose the correct answer
I.......less than an hour when i ran out of petrol
a.drive b.drove c.have been driving d.had been driving
2. how long........ he been working when you came?
a.has b. does c. had d. is
3.her eyes are red because she.........
a, cry b. have cried c.has been crying d, had been crying
4. her eyes were red because she......
a. cry b. have cried c. has been crying d. had been crying
5. when we came, they .......
a. are learning b.were learning c. have learned d. learned
exercise 2 which underlined part is not correct(chọn cau sai và sữa lỗi cho đúng)mk ko gạch chân ở dưới những từ được nên để câu abcd thế
1. when we woke him up, he has been sleeping for two hour
a. when b. up c. has been sleeping d. for
2. yesterday when i arrived at the airport, the plane has taken off for 30 minutes
a.when b. ar the airport c. has taken d. for 30minutes
3.everyday Mary usually got up at 6 o'clock to do morning exercises
a. usually b. got up c. to do d. morning
4. one day i was driving along the stress.Suddenly i realized i has been driving in a wrong way
a. one day b. was driving c. realized d. has been driving
5. Paul has graduated from university for two years. Up to now he has found a good job yet.
a.from b.for two years c, up to now d. has found
exercise 3: put each verb in the brackets into past perfect continous
1 the anthropologist left the village when she (collect)................... enought data
2. it was wet because it(rain)......................his work, he locked the door and went home.
3 after johnson (finish).................his work. he locked the door and went home.
4.the police( look)........................for the criminal for two years before they caught him
5. he was out of breath. he (run)............................
6. when i got up, i found that the ground was wet. it(rain)...................
