選C
know about sb了解某人
It takes sb some time to do sth 這里得接不定式形式
But it took about 30 years for the American people_____?_______ them.
But it took about 30 years for the American people_____?_______ them.
A：know
B：to know
C：to know about
D：know about
A：know
B：to know
C：to know about
D：know about
英語(yǔ)人氣：813 ℃時(shí)間：2020-05-19 07:35:46
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