Charlie ______ be really difficult at times even though he’s a nice person in general.

Peter is honest boy and______ good friend of mine.

Did you visit my school ________ there wasa big library

Don’t , my children. I’m sure you will win.— Thank you, Mr Wang. We’ll try our best.

It’s raining! When did it start — I don’t know exactly. In fact, it _________ all this afternoon.