Not until Mr. Smith came to China _____ what kind of country she is from.(本题2.0分)
A、 he knew
B、 he didn.t know
C、 did he know
D、 he couldn.t know

答案是:

标准答案:C
出自  青书学堂  >  大连工业大学-大学英语3

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本题添加时间:2023/4/3 12:59:00