Question

9. ―I see you got a "D" in biology.    ？

―Well  I found that subject hard. I think I'll drop it for history.

A.    How about that

B.    What for

C.    How come

D.    What's your next plan

Answer 1

9.    C考查交际用语。句意："我看到你生物得了'D'，怎么回事？""好吧，我发现生物难。我想我将要放弃它学历史。"此处how come意为"怎么回事"。