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7.(2007潍坊)The suitcase looks too heavy for the lady to carry, Let’s go to help her ,          ?

A. will you            B. won’t you                C. shall we            D. do you

8. (2007青岛)The old man had to do all the farm work himself,            ?

A.did he                B.had he                     C.didn’t he           D.hadn’t he

9. (2007青海)She never comes late,               ?

A.doesn’t              B.does                         C.is

10. (2007河北)You bought a new computer last week,           you ?

A.aren’t                B.don’t                        C.didn’t                D.haven’t