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No sooner ___ down on bed ___ the telephone rang.

It was the training _____ he had as a young man _____ made him such a good engineer.

Some of you may have finished unit one. _____, you can go on to unit two.

They hope to turn our society into one ______ those in need can get help.

—Did you enjoy your holiday?
—Yes．it's the best holiday I         these years．

He called to tell me that you are in hospital, otherwise I ______ nothing about it.

Living in the mountain area has its problems , _____ obtaining water is a big problem.

When asked to explain ________ made his lessons so exciting, the teacher kept silent.

Whenever a natural disaster happens, we should offer ____ help we could to those victims.

If only I _______ your praise then! For, you see, I lost heart and gave up.