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Jack almost fell off a big tree while climbing it, but managed to __________until help came.

  A. put on           B. hang on         C. turn on           D. take on

—Will you buy me a new iPod, Dad?

    —OK. You __________have one if you promise to take care of it.

A. might            B. must            C. could             D. shall

__________I don’t like the film, the leading actor’s performance gave me a deep impression.

    A. When             B. Since           C. If                D. While   

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

—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   

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

__________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

—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 

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

Either you or one of your family members __________the opening ceremony next week.

    A. attends          B. attend          C. is to attend      D. are to attend