Our class discussed the question of __________it is necessary for us students to use mobile phones on campus.
A. if B. where C. whether D. that
—Peter, your hair is getting much too long. It’s high time you __________it cut.
—OK. I will.
A. have B. had C. have had D. will have
__________people relaxation and pleasure, but it can also increase their knowledge of any kind.
A. Not only can travel give B. Not only can give travel
C. Not only travel can give D. Not only travel gives
It was in the lab __________was in the charge of Professor Smith __________they carried out the experiment.
A. where；that B. which；where C. that；where D. which；that
—Bad luck. My computer doesn’t work.
—Why not turn to John? No one can match him in our class when it __________repairing computers.
A. comes to B. leads to C. contributes to D. attends to
Every year about one million tourists visit Stonehenge, which is believed __________before the Pyramids, about 4,000 years ago.
A. to build B. to have built
C. to be built D. to have been built
