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