请讲正确答案写出:
1.Either fans or an air-conditioner (be)______necessary for our lab.
2.She spoke about him as if she (know)______him for years.
3.The teacher was standing in front of the blackboard (hand out)______the test papers to us.
4.His watch has stopped. He forgot (wind)______it in the train last night.
5.He remembers (take)______to Paris when he was a very small child.
6.I wish I (go)______to the college next year.
7.Do the results have any practical (apply)______?
8.He sold the house he (purchase)______only two years before.
9.He reaches he top floor without (pause)______for breath.
10.They are testing the engine (design)______by the students.
11.The card will (equip)______with a built-in computer chip.
12.I've made all the (arrange)______for the conference.
13.An (educate)______is a person who (educate)______people.
14.They had the meat (roast)______in the oven.
15.There is an essential (differ)______between computers and humans.
16.His father insisted that he (find)______a job after graduating from high school.
17.It took him quite a long time to get used to (drive)______on the left side.
18.She is always complaining about (send)______here as a teacher.
19.She is proud of (elect)______as one of the representatives.
20.A young man stood nearby while I (read)______the newspaper.

1.is
2.had known
3.handing out
4.to wind
5.being taken
6.would go
7.application
8.purchased
9.pausing
10.designed
11.be equiped
12.arrangement
13.educator, educates
14.roasted
15.difference
16.(should) find
17.driving
18.being sent
19.being elected
20.was reading