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單項(xiàng)選擇題

Five year old children are too young to go to school,（）

A.are they
B.aren’t they
C.were they
D.have they

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Few students failed in the exam at the end of last term,（） ?

A.do they
B.didn’t they
C.don’t they
D.did they

單項(xiàng)選擇題

Father made his son（）by the door.

A.stands
B.stood
C.standing
D.stand