My children are looking forward to （ ） a trip to Paris.

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

It is very expensive to （ ） the fashion.

You needn’t introduce him to me. I’ve met him on several _____.

We mention the importance of giving up smoking once and again, but hardly ______ it.

Three of us will go there, and the rest （ ） to stay here.

Mr. Jones, _____ life was once very hard, is now very successful in his business.

（ ） has already been pointed out before, English grammar is not a set of dead rules.

The kidney transplant operation was _____ complicated， so the operating team had to take special care to ensure its success.

It （ ） that the jewels had been stolen by a traveler.

The government cannot operate effectively （ ） it is free from such interference.

Three of us will go there, and the rest （ ） to stay here.