There is no doubt scientific knowledge is very important for teenagers. A. whether B. that C.——青夏教育精英家教网——

题目内容

There is no doubt scientific knowledge is very important for teenagers.

A. whether
B. that
C. if
D. what

试题答案

B

相关题目

There is no doubt scientific knowledge is very important for teenagers.

A. whether
B. that
C. if
D. what

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