Dress warmly, （ ） you will catch cold.

These tickets for the performance are （ ） until the end of the month．

If you suspect that illness might be serious，you should not （ ） going to the doctor.

It is （ ） impossible to work with this noise around.

He works too hard.That’s _____ is wrong with him.

The audience stood and （ ） at the end of the performance.

It was once a difficult time, but in the end everything _____ all right.

No sooner had he sat down to lunch （ ） there was a knock at the door.

I didn’t hear （ ） because there was too much noise where I was sitting.

It is her beautiful eyes （ ） attract most of the fans.

Last year he learned （ ） he had expected because he worked a lot harder.

One of my brother’s many faults is that he never（ ） anything very long.