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She worried ________ her child would be hurt.

. Be careful when you cross this very busy street. If not, you may _______ run over by a car.

. Has anything _________ wrong with your car?

---–Why did you come so late for work?

-----I was ________ for 15 minutes on the way here in the traffic jam.

–---I’ve decided to spend the summer holidays traveling in Australia.

----Oh, ________!

________ your spirits. Try again and you’ll succeed.

The scientists are now trying to discover that use could be _________ such material.

You can’t ________ her in knowledge of classical music.

The population of many Chinese cities has _________ doubled in the past 30 years.

. –Have you finished designing a dress?

--________ finished but there’s still something to improve.