Can you make sure _______ his bike?

A. Where Mr Smith had put　　　 B. where had Mr Smith put

C. where Mr Smith has put　　　　 D. where has Mr Smith put

Is Mr. Wu from Beijing? I don’t know ________.
A. where does he come from  　　　　　　 B. from where does he come
C. which city he comes from  　　　　　　 D. what city he comes from

Next door to ours _________, who has just returned form abroad.

A. where lives an old man　　　　 B. where does an old man live　　

C. lives an old man　　　　　　　 D. does an old man live

Where do you think it was ____ the traffic accident happened?

A. where B. how C. what 　D. that

The class _____ my daughter studies in _____ fifty-six students.

A. where; is made up of　 B. which; consists of　

C. which; makes up D. where; is consisted of