Hank ____ his capable secretary by leaving most of the work to her and doing little himself.

Are there any English story-books for us students in the library?—There are only a few, _______________.

Many of us who have never been to Egypt always Egypt with the ancient pyramids.

Computers are so popular in our country that every pupil knows _____ e-mails.

下列各句中，没有语病的一句是