______a dog on the road,the car stopped（）
A. Having seen
B. On seeing
C. The driver seeing
D. Seeing
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（）A few years later，I found my hometown completely_______
A. changed
B. changing
C. to be changed
D. to change
The concert has already begun．You should have come a little bit_______（）
A. early
B. much earlier
C. more earlier
D. earlier
Where in the past three years（）
A. had you gone
B. have you gone
C. did you go
D. have you been
It is illegal for a public official to ask people for gifts or money_______favors to them（）
A. in addition to
B. in place of
C. in honour of
D. in exchange for
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