单项选择

• 1、

  She ______ as an animal trainer since 2003.

• 2、

  Paper-marking is ______ of ancient China.

• 3、

  —Excuse me, when does Flight CZ3391 take off —One

• 4、

  —Why are you standing there, Maggie —I can't see

• 5、

  —Guess, how much does it cost —I think it costs _

• 6、

  —I think science is more useful than art. —I disa

• 7、

  —I think English is ______ math. —Yes, I think so

• 8、

  —Wang Hong speaks English very well. — ______. Sh

• 9、

  I hope we can fly to ______ moon one day.

• 10、

  —How about ______ in the river with us —Sorry, I