The naughty boys would play ______trick on ______ neighbours who didn’t give them any sweets on Halloween.

My friend, David, was not used __________ by air, so he felt unwell.

I wondered what difficulty he had _________ the plan?

When we climbed up to the top of the mountain, we were all ___________.

So seriously _____ in the accident that he was sent to hospital at once.

 —I' m sorry, but I didn’t mean__________ out your secret.

—But you know, letting out one's secret means________ one' s feelings.

---The novel gone with wind is said _____ into several languages.

You should try to_____ new circumstances as quickly as you can.

The poor man , ________，ran out of the dark cave.

Tom raised his hands      to say something, but he remained silent in the end.