The old woman has a son and two daughters, andare college students now.A. all of whomB. bo

发布时间：2020-08-16 10:26:35

The old woman has a son and two daughters, and    are college students now.
A. all of whom
B. both of whom
C. all of them
D. both of them

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A. all of whom
B. both of whom
(答案→)C. all of them
D. both of them
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