I was just about to go to bed last night ______ the telephone rang.
A. while B. when C. as D. before
My brother wants to leave the company as it is I would like to expand it.
A. unless B. since C. before D. while
______a lot of people come to Alaska for vocation every summer, only few have decided to stay forever.
A. Because B. If C .One D while
If anything should happen, the nearest person he could contact by radio , _____ there was a ship nearby, would be on an island 885 miles away.
A. until B. when C. once D. unless
both sides accept the agreement a lasting peace be established in this region.
A.Only if; will B.If only; would C.Should; will D.Unless; would
At school, some students are active _____ some are shy, yet they can be friends with one another.
A. while B. although C. Since
______you send me an e-mail to say that you won’t go camping, I’ll wait for you at the park.
A. Unless B. When C. Whether D. If
I am determined to have a try it means risking losing everything.
A. now that B. as though C. as long as D. even though
_______ his return from America, he got down to his research.
A.While B. In C. On D. As
It was when I argued with Hannah ______ I told her we were not going to be friends any more.
A. until B. when C. so D. that
-- “Where have you been?”
-- “I got caught in traffic, ____I would have been here earlier.”
A. although B. however C. but D. otherwise
______ Lily ______ Lucy may go with you because one of them must stay at home.
A．Not only; but also B．Neither; norC．Both; and D．Either; or
He found it increasingly difficult to read, ______ his eyesight was beginning to fail.
A．though B．for C．but D．so
You’d better take a taxi,____you’ll miss the train.
A．and B．or C．but D．though
We became good friends quickly, ______ our life experiences couldn't have been more different.
A. as long as B. even though C. in case D. as though
She was walking down the road ______ she heard someone shouting for help.
A. when B. suddenly C. until D. before
—Some Chinese students find it difficult to understand native speakers when in London.
—Exactly, _______ they've learned a lot about grammar and known many words.
A. if only B. now that C. as if D. even if
Mother asked me to take more money ______ something unexpected should happen.
A. in case B. so that C. in order that D. when
—Would you mind my sitting here with you?
—No, ______ you aren’t too noisy.
A. when B. if C. unless D. as soon as
It was in 1969 ______ two Americans went to the moon by spaceship.
A．that B．before C．when D．since