Maryreallydoesn’tknow
问题详情：
Mary really doesn’t know __________ about it.
A. what to do B. how to do C. to do what D. how can I do
【回答】
A
知识点：非谓语动词
题型：选择题
问题详情：
Mary really doesn’t know __________ about it.
A. what to do B. how to do C. to do what D. how can I do
【回答】
A
知识点：非谓语动词
题型：选择题
