when you leave the classroom,make sure the door A is locked B will be locked 选哪个?为什么?

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when you leave the classroom,make sure the door A is locked B will be locked 选哪个?为什么?
when you leave the classroom,make sure the door A is locked B will be locked 选哪个?为什么?

when you leave the classroom,make sure the door A is locked B will be locked 选哪个?为什么?
A is locked
make sure 后面用现在时

A,表示一般的时态,没有表现将来

。。。。。。这算什么问题?那要看是不是最后一个了~

A
你离开教室时,请一定把门锁好。
这里是指一般情况,所以与类似“如果明天天晴,我们去野餐。(If it's fine tomorrow, we'll have a picnic.)“ 有所不同。主句还是用一般现在时。
希望对你有帮助

选A,一般现在时表将来