I'll let you know as soon as he .A. comes backB. will come backC. is coming backD. come ba

问题补充：

Ill let you know as soon as he .

A. comes back

B. will come back

C. is coming back

D. come back

答案：

(答案→)A. comes back

B. will come back

C. is coming back

D. come back

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