【题目】I often go to school by ___ bike.

【题目】—Where is Linda? — She may be at home. But I’m not sure it.

【题目】I like playing____ piano and singing very much. I want to be musician like Liu Huan.

【题目】There is _____ old book on the desk.

【题目】Mother told the girl to ________ her toys and clothes to keep her room clean.

【题目】—Don't forget to ________ the water when you finish using it.

【题目】我们的语文老师对我们严格要求。

【题目】—Would you please ________ at six tomorrow morning?I must get up early.

【题目】— Do you know ______ girl who is standing under ____ tree?

【题目】你每天铺床吗？