Are you going out? Yes, please lock the door when you ___ .

2023-05-26

A.will leave
B.leave
C.have been leaving
D.will have left

参考答案:B

本题考查动词时态。题目意为“你要出去吗?那么,你出去时请锁门。”此处用一般现在时表示将来,选项A为一般将来时,选项C为现在完成进行时,选项D为将来完成时,均不符合题意。故选B。