问题补充：
The food in the fridge bad. Throw it away, please.
A. is smelt terrible
B. smells terribly
C. smells terrible
D. is smelt terribly
答案：
A. is smelt terrible
B. smells terribly
(答案→)C. smells terrible
D. is smelt terribly
解析：smell表示闻起来，怎样，不用于被语态，，smell 后接形容词，表示闻起来怎样。
