18．I use a clock to wake me up because at six o'clock each morning the first train passes by ——青夏教育精英家教网——

18．I ______ use a clock to wake me up because at six o'clock each morning the first train passes by my house．（　　）

17．---Must I work out the problem right now？
---Yes，you _______．It's very serious．（　　）

16．---I took lots of photos in Hainan．
---Really？Could you show ______ to me？（　　）

15．-________ I finish the work this morning？
-No，you needn't．You can finish it tomorrow．（　　）

14．Please tell ________ your telephone number．（　　）

13．-Bill，can I use your dictionary？I left mine at home．
-Of course you________．Glad to help you．（　　）

12．-______ I take the magazine out of the reading room？
-No，you mustn’t．（　　）

11．-Can you find the differences between the two pictures？
-Yes，I________．（　　）

10．Lucy and Lily twins．They look the same．（　　）

9．Her father is a teacher．____teaches math at a school．（　　）

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