题目内容
. There is such an occasion ___________ we know lots of words, but we can’t choose a suitable one to express ourselves.
A.where | B.when | C.which | D.what |
B
解析

练习册系列答案
相关题目
题目内容
. There is such an occasion ___________ we know lots of words, but we can’t choose a suitable one to express ourselves.
A.where | B.when | C.which | D.what |
B
解析