A-A+
His parents are worried because they haven't h
问题详情
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
参考答案
正确答案：C
解析：应改为from。hear from意为“收到……的来信”。本句的意思是：“他的父母很担心，因为他们已2个多月没收到他们儿子的来信了。”
