问题
选择题
Only after I read the text over again _____ its main idea.
A．that I knew
B．did I knew
C．1 could know
D．I did know
答案
答案：B
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Only after I read the text over again _____ its main idea.
A．that I knew
B．did I knew
C．1 could know
D．I did know
答案：B