Our teacher told us that we never forget it.A. so an interesting jokeB. such an interes

问题补充：

Our teacher told us that we never forget it.

A. so an interesting joke

B. such an interesting joke

C. so interesting a joke

D. such interesting a joke

答案：

A. so an interesting joke

B. such an interesting joke

(答案→)C. so interesting a joke

D. such interesting a joke

解析：so后面要紧跟形容词，然后再跟名词，如果该名词为可数名词的单数形式，那么要在名词前加不定冠词；such要跟名词，如有形容词修饰，且该名词为可数名词单数时，其结构为:such+a/an+adj.+n.。