题目内容
（请给出正确答案）
[主观题]
If you （happen) to （come across) Jack, please tell him （to come) and see me when he （will
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
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