He seemed as if he his homework when his mother came in.A. didB. is to be doingC. were do

发布时间：2020-08-15 02:03:05

He seemed as if he      his homework when his mother came in.
A. did
B. is to be doing
C. were doing
D. be doing

网友回答

A. did
B. is to be doing
(答案→)C. were doing
D. be doing
解析：这是以as if引导的条件状语从句,一般要用虚拟语气.这是与现在事实相反.所以选C
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