20.­---------the English exam is difficult isn’t it? -------Yes. Even Tom to the to

问题补充：

20.­---------the English exam is difficult , isn’t it?

-------Yes. Even Tom, to the top students, failed .

A. belonging

B. belonged

C. to belong

D. Belongs

答案：

(答案→)A. belonging

B. belonged

C. to belong

D. Belongs

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