Our monitor didn’t see all the students, because        was ill and didn’t come to school today.

You may drop in or just give me a call. _________ will do.

I have two uncle, but ____ of them lives here.

—I'm too busy preparing the exam. Could you do _______to help me?—Of course. I can do _______for you if you want me to.

October 1, 2009 is a special day, ________ I think, that will be remembered by all the Chinese forever.