---Could I hang out with my friends?---___. You have to prepare for your math test.
Bad luck! I tried many times but _______again this time.
—Mum, must I stay there the whole day?--No, you ______. You ______ come back after lunch, if you like.
There used to be a lot of tall buildings,_________?
---Do you know ______famous tennis player named Li Na?---Yes. She plays tennis well.
—The song Where did the time go ________ the old days and the love of family.—Sure. It’s my favorite song.