A-A+
If you (happen) to (come across) Jack please
问题详情
If you (happen) to (come across) Jack, please tell him (to come) and see me when he (will be free).
A．happen
B．come across
C．to come
D．will be free
参考答案
正确答案：D
解析：应改为is free。when引导的时间状语从句中要用一般现在时表示将来。例如：If it doesn't rain tomorrow，we'll go to the Summer Palace. (如果明天不下雨，我们去颐和园。)When he gets to the village，he will write to me. (他到村里后就会写信给我。)
