题目内容
(请给出正确答案)
[主观题]
His parents are (worried) (because) they haven't heard (of) their son (in) more than two m
His parents are (worried) (because) they haven't heard (of) their son (in) more than two months.
A.worried
B.because
C.of
D.in
查看答案
如果结果不匹配,请 联系老师 获取答案