_____, the professor is still trying to learn a new language.

It was while she was sleeping in her bedroom_____a thief broke into the house.

If the wounded soldier had been given first_____, he would not have died.

Can you_____the difference_____the two phrases?

—（ ）, Madam. Is there a post office near here? —Keep on going ahead.Turn right at the first crossroad.Then you’ll find one there.

Her sister always spends so much _____ her clothes that she can’t manage to live with her salary.

Ten minutes _____ an hour when one is expecting a phone call.

It’s too late to go out. _____， it’s going to rain.

The computer doesn’t work well， so something （ ） wrong.

By the time you arrive in London, we （ ） in Europe for two weeks.

（ ） that the trade between the two countries reached its highest point.

We arranged to meet at the station but she did not （ ）.