Not until quite recently _____ any idea of what a guided rocket is like.

—Do you like the material? —Yes, it （ ） very soft.

（ ） his last word, he got into a taxi and disappeared in no time.

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

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

_____ some more time, and I will find a solution to the problem.

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

Because they are （ ） a date, many of us believe that they are in love.

I suppose that when I come back in ten years’ time all these old houses _____ down.

The weather was good except for an （ ） shower.

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

They always give their vacant seats to （ ） comes first.