The man sat the bus because he is the driver.A. in front ofB. at front ofC. in the front

问题补充：

The man sat the bus, because he is the driver.

A. in front of

B. at front of

C. in the front of

D. the front of

答案：

A. in front of

(答案→)B. at front of

C. in the front of

D. the front of

解析：in front of在…前面， in the front of 在…前部(在某范围以内)

at the front of 在…前部与in the front of同意

at…强调“前部的某一点” in强调在…范围的前部 故选B.