______ of danger in the street at night, she had to go home, with a friend _____ her.

So far this year we ________ a fall in house prices by between 5 and 10 percent.

---Don't put the waste on the ground.
---Oh, I'm very sorry. I ________ the dustbin（垃圾箱） there.

By the time she ________ home, her parents will have prepared some delicious food for her.

With the development of modern society, E-mail as well as telephones         an important part in daily communication.

Seeing the chemical ________ to the sunlight, Mr. Lee warned the workers to be careful when dealing with it.

The book has been translated into thirty languages since it ______ on the market in 1973.

The inner connection for the entire area _____when there was a sudden power cut yesterday.

—I have just received another message, telling me I have won a big prize.
—Don't jump on it. You ________.

一When shall we start the restoration of the historic buildings?
一Not until our plan________ by the committee.