He ________ whether he will be able to win the tennis match. So he feels very nervous.

Wang Lin has decided to ______his bad habit of smoking. — That’s good news. I hope I can do it.

Bill doesn’t like the sunglasses because they can’t ______ the sun well.

Miss Fang is _________ English teacher. ___________ is a good teacher.

I used to spend all my pocket money on clothes and snacks. But now, I try to ______ some money for charities.