题目内容
21、Do you know if he back in two hours?
A. will be B. comes C. has been
评卷人
得分
四、补全对话
（每空？ 分，共？ 分）
试题答案
21、A
[ ]
Do you know if he back in two hours?
Do you know if he ________ back in two hours?
A．will be
B．comes
C．has been