Why are the students working so hard these days? — _____ ready for the coming entrance examination. [ ]

Jack is funny make us happy after class.

— I’m sure Andrew will come out first in this gymnastic competition.— I think so. He ________ for it for months. [ ]

Don’t eat in class, Hu Lei! ——_______, Miss Zhang.

Charles Darwin considered ______ to be the process by which evolution took place.