Had they known what was coming next, they________ second thoughts.
—Has he changed his mind?—Yes. After some hours of discussion, I ____ to talk him into accepting the new plan.
I got an e-mail from Liu Xin, ___ said she was going abroad for further study.
The fact that people are afraid to go out at night is often a result of perceived (感知) danger ________actual danger.
In Hangzhou, Mr. Black was so struck ______ the beauty of nature that he stayed ________ another night.
It is morning _____ we have four classes, not afternoon.