I wonder _______ there are so many natural disasters across the world in 2010.

    A．why is it            B．it is why that       C．why is it that       D．why it is that

 Into the dark apartment _______, who was quite surprised when everyone shouted “Happy Birthday”.

    A. did David walk       B. David walked     C. David did walk       D. walked David

 Sorry I’m so late, but you cannot imagine _______ great trouble I took to find your house.

    A. what             B．how              C．which            D．why

 I’m going to buy my daughter another interesting novel, _______ she would like to read．

    A．that                 B．what             C．one              D．it

 _______ playing dumb with teachers．They know very well their students.

    A．It’s no use     B．There’s no doubt        C．It’s no wonder      D．There’s no need

 — I heard the phone ringing in the office next door.

    — You _______ it. They haven’t got a phone yet.

    A．couldn’t hear   B．couldn’t have heard     C．didn’t hear D．wouldn’t have heard

 _______ I know the exam isn’t difficult, I shall not worry about it.

    A．As long as           B．As far as            C．In case          D．Even if

 The latest suicide attempt came after 13 Foxconn employees jumped off buildings, ten of _______ have died so far this year.

    A. them             B. who              C. which                D. whom

 — Could you introduce me a high quality car?

    — My pleasure．_______ well even on wet roads, this kind of car is very popular．

    A．Handled          B. To handle        C．Handling             D．Being handled

 Nowadays students can enjoy easy _______ to various learning resources through the Internet.

    A．access           B．introduction     C．way              D．description