Question

I think he his room yesterday. A. don’t; cleaned B. am; cleaned C. /; clean D. don’t; clean

( )I_____think he_____his room yesterday.
A.don't,cleaned B.am;cleaned C./;clean D.don't;clean

Answer 1

选A：我认为他昨天没有打扫他的房间。Think有否定前移的功能。

如果要表达：我认为他昨天打扫房间了，应该是：I think he cleaned(昨天，一般过去时) his room yesterday(昨天，过去时间)。

Answer 2

I think heB his room yesterday.
A. don’t; cleaned B. am; cleaned C. /; clean D. don’t; clean
我认为他昨天打扫了他的房间