The tea house situated near platform 6 is now offering free cups of tea to those ________ for the Xi'an train．

A．waiting

B．wait

C．to wait

D．waited

________ made things worse, he said, was that his roommate never look part in any of the cleaning work．

A．What

B．Which

C．That

D．Who

I ________ toward the door to go outside when suddenly Jim opened it unexpectedly．

A．walked

B．was walking

C．had walked

D．had been walking

Most people go to the theatre not to see a play ________ plot is complicated, but to listen to brilliant dialogues between actors．

A．where

B．what

C．which

D．whose

Many things such as going abroad and owning a car, ________ impossible in the past, are now very common．

A．being considered

B．to be considered

C．considering

D．considered

Walking exercises ________ be boring at times, but on a clear sunny morning nothing could be better．

A．may

B．will

C．must

D．should

It was in the lab ________ was in the charge of Professor Zhang ________ they did the experiment．

A．where; that

B．which; where

C．that; where

D．which; that

I'm afraid that the passengers will have to wait at the airport for another day ________ the fog clears up．

A．when

B．unless

C．if

D．though

There are some cases ________ students obviously know the school rules but don't obey them．

A．why

B．where

C．as

D．which

A team, ________ two doctors and three policemen, was sent to search for the lost explorers．

A．consisting of

B．consists of

C．consisted of

D．to be consisted of