I ( )Jack the( ) answer
A,think;doesn't knowB.don't think ; knowC.don't think ; knows
D.think ; don't know
人气：367 ℃ 时间：2020-02-05 12:17:27
解答
正确答案应该是B,但你好像把句子写错了,应为I don't think jack know the anwser.因为像think,believe,imagine,suppose等词在句子中要否定时需否定前置,即在主句中否定,由于否定时用到了助动词,所以宾语的谓语动词用原形.
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