1.I'll call you as soon as I _____(arrive).2.He did his homework as soon as he _____(get)home.3.He _____(not find)his hat yet.

问题描述:

1.I'll call you as soon as I _____(arrive).
2.He did his homework as soon as he _____(get)home.
3.He _____(not find)his hat yet.

1.arrive
条件状语从句,主句是将来时,从句时一般现在时
2.got
条件状语从句,过去时的时候,主句和从句都用一般过去式
3.has not found
有yet一定是完成时的否定