Beijing is _____ capital of China and it is _____ city with many places of interest.

A. a; a    B. a; the           C. the; a       D. the; the

The air in mountain areas is ____ that in big cities.

   A. as fresh as     B. fresher than    C. as dirty as    D. dirtier than

Keep practicing and you _____ your English.

   A. improve    B. will improve    C. improved    D. were improving

—Did you call Sara back?

   —I didn’t need to, _____ we’ll have a meeting together tonight.

  A. though      B. unless    C.. because     D. if

The new library building _____ last week.

  A. was completed   B. is completed    C. completed    D. has completed

_____ people are waiting to watch the raising of the national flag at Tian’an Men Square.

  A. Hundred    B. Thousand    C. Two hundreds    D. Thousands of

—Have you decided where to spend your summer holiday?

  —Not yet. We _________ go to Qingdao.

A. must         B. should           C. need     D. may

—Please _________ the tigers. It’s dangerous to take photos with them.

   —Oh, I see. Thank you.

   A. keep off     B. take off    C. get off          D. turn off

_________ wonderful news report he wrote! All of us were proud of him.

   A. What a       B. What        C. How          D. How a

—Could you tell me_________?

    —He is in the library．

    A．where Simon was               B．where is Simon

    C．where was Simon               D．where Simon is