9. “Do you have any questions clear to you?” the teacher asked.A. which are notB. that is

问题补充：

9. “Do you have any questions clear to you?” the teacher asked.

A. which are not

B. that isn’t

C. not to

D. To

答案：

(答案→)A. which are not

B. that isn’t

C. not to

D. To

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