Excuse me, sir. Is the swimming pool open all day—_______. Only from 6:30 p.m. to 9:30 p.m.

The computer needs_________. I think I need ________ to ask Mr. Zhang for help.

Traditionally, Chinese people _________ the Chinese characters Double Happiness and stick them onto walls or doors for weddings.

The number of the students in our school ________ about 3000 and ______ them study hard.

What do you ______ the waste bottles?—We can sell them instead of throwing them away.