题目内容
It is known to us that lions and tigers ________ the cat family.
A.are belonging to | B.belonged to | C.belong to | D.are belonged to |
C
解析

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题目内容
It is known to us that lions and tigers ________ the cat family.
A.are belonging to | B.belonged to | C.belong to | D.are belonged to |
C
解析