What’s wrong You seem rather angry. —I was asked to pay this ugly shirt is worth.

What do you do as a volunteer in North Africa—__________! There are many poor people who need a lot of help.

It never _____ humans until the mid­1990s that some animals can be cloned

I was about to leave the office ______ the telephone rang．So I stopped ______ it．

His sister’s never been to the Summer Palace, _______