问题补充：
---Where’s Uncle Wang?---He’s sittingthe bus. He’s the driver.
A. behind
B. in the front of
C. in front of
D. between
答案：
A. behind
(答案→)B. in the front of
C. in front of
D. between
解析：他是司机，所以肯定是在车子前面。in the front of 在……前面（包含在内部）in front of 在……前面（在外部）故选B.
