—It’s better to________more nature reserves to help save more animals in danger.—That’s a fantastic idea.
Our teacher always says, “_____careful you are, _____mistakes you’ll make”.
---I often study English _____listening to tapes.How about you? ----I always watch English movies ___TV.
---Do you know ______famous tennis player named Li Na? ---Yes. She plays tennis well.
If you _________ something that you have done, you wish that you had not done it. A. regret B. expect C. like
It is __________ for us to do exercises regularly. It is good for our health. A. tiring B. necessary C. the worst