Question

2. (2014 •河南) He's not a perfect child. He sometimes talks back his parents talk with him.

   A. if   B. before   C. when   D. until

Answer 1

2. C

2. C考查连词辨析。

if“如果，是否”；before“在……之前”;when“当 时”;untir‘直到”。句意：他不是一个完美的孩子。当父母和他说话时，他有时会顶嘴。 故选 C.