What do you think _____ to her? She is very angry now.

I have P.E._____ the afternoon of Tuesday. [ ]

Why would some workers in Foxcon die _____ continue working in the factory? — Psychologists say they are under too much pressure. [ ]

Will you go to the park after school? ––No, I’ll go home, for my mother is waiting for me for supper.

.—How _______the frog(雾) is! We can’t see clearly while riding.