He is just thinking about______at the class meeting.

问题描述:

He is just thinking about______at the class meeting.
A how to say B.what to say it C.how he says D.what to say.

选择D
解析:
“疑问代词后加动词不定式”,故排除C
有一个固定形式:
“how to do sth”怎么做它
“what to do”做什么
所以 A应是how to say it
B应是what to say
能明白吗?