.He said he _________ experiments those days.
A. was doing B. had been doing C. has been doing D. is doing
There was a heavy curtain ________ the light.
A. blocking out B. preventing fromC. blocking in D. taking off
.Since I came here two years ago, great changes __________ in the factory and many people want to come here to pay a visit.
A have been taken place B. had been taken place C. have taken place D. are taking place
----Guess what ! I came across a friend at the party last night.
---- ________. I am sure you had a wonderful time.
A. Sounds good! B. Very well. C. How nice ! D. All right.
I ________along the street looking for a place to park when the accident_______.
A. went; was occurring B. went; occurred
C. was going; occurred D. was going; had occurred
87现在，他们非常关心他的健康状况。
They _____very ______ ______ his health now.
88.那时，我总是对她说我愿意帮忙。
I told her I ______ _______ ______ help.
89似乎没有人懂这个，我不知道该向谁求救。
Nobody seems to understand and I don’t know who to _____ _____ for help.
90.雷磊总是致力于帮助他人。
Lei Lei always _________ his life ________ helping others.
91.昨晚我梦想在这儿见到你。
I _______ ________ ________ you here last night.
92.那一天恶劣的天气增加了我们的困难。
The bad weather ________ ________ our difficulty that day.
