Joan saw her boyfriend off at the railway station. She waved until the train was _____.
A. in sight B. out of sight C. at first sight D. lost sight
The more often one takes exercise, ______ he or she will become.
A. the strong B. the stronger C. more strong D. more stronger
—Do you think it’s going to rain over the weekend?
—________.
A.I don’t believe B.I don’t believe it C.I believe not so D.I believe not
-----Why didn't you go to the gathering yesterday?
------It rained so hard and in addition, I ________ an important essay the whole morning.
A. wrote B. had written C. was writing D. have been writing
--- Tom, wait a minute.
--- What for?
--- Take an umbrella _____ it rains.
A. in order that B. so that C. in case D. as if
There are hundreds of visitors in front of the Art Gallery to have a look at Van Gogh’s paintings．
A．wait B．to wait C．waited D．waiting
