What do you think Mr.Green is like?—Haven’t you seen through him?I have warned you again and again that men of this kind______

A positive attitude，________with willingness to seek appropriate help and exercising solid study habits，will do much to determine how well you do in your studies

It’s difficult to ___ these old books for some of them ______ none of the classification.

_____ guests we have, we wouldneed ___ food.

Jerry ________ with a stranger when I met him on the way to work yesterday.