23. Please ask not to skate on the thin ice.It’s very dangerous. A. they B. them C. their

发布时间：2020-08-16 06:55:17


23. Please ask      not to skate on the thin ice.  It’s very dangerous.
A. they
B. them
C. their
D. Theirs

网友回答

A. they
(答案→)B. them
C. their
D. Theirs
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