Even if there is no scientific proof secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk.
_____ in a heavy snow, he didn’t get there in time.
Seeing the ______ sight, the girl was nearly _______ to death.
It suddenly ________ me how we could improve the situation.
I thought he would offer to pick me up. _______, he even refused me when I asked him to do so.
Li Ming is a student who is easy _____ though he has some trouble _____ his lessons.