Please tell Mary to call me when he ____back. A.come B.comes C.came D.will come

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PleasetellMarytocallmewhenhe____back.A.comeB.comesC.cameD.willcomePleasetellMarytocallmewhenhe____ba

Please tell Mary to call me when he ____back. A.come B.comes C.came D.will come
Please tell Mary to call me when he ____back. A.come B.comes C.came D.will come

Please tell Mary to call me when he ____back. A.come B.comes C.came D.will come
B.comes
应用一般现在时

B 在时间状语从句和条件状语从句中,主句用一般将来时,从句用一般现在时表达将来时。
此处主句为祈使句,表示要去做某事,从句为when he comes back,用现在时。
这是语法规定的啦,老师上课会反复讲的,很简单,希望能帮到你。

选B。
在时间状语从句和条件状语从句中,主句用一般将来时,从句用一般现在时表达将来时。又因为是he,所以就用三单了。