题目内容

9. When Tom was a little boy, he already knew the sun ( ) the center of the solar system.

A. was
B. is
C. will be
D. are

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10. She told me her name only after I ( ) her twice.

A. have asked
B. asked
C. had asked
D. have been asked

11. Let's give the patient ( ) hand. ( ) ambulance is waiting for us outside ( ) school.

A. a /The/the
B. a /The/an
C. the/A/an
D. the/A/the

12. The students ( ) basketball energetically on the palyground right now.

A. are playing
B. play
C. is played
D. played

13. The bridge ( ) by the time you come back from abroad.

A. will be built
B. is built
C. will have been built
D. have been built