can

I know Jonathan quite well and never doubt 　　　　he can do a good job of it.

____________ a marked difference between right and wrong can be very important in one’s career.

—Mr. Zhao, can you give me a lift after school?(2/28) ---_________________.

Children are tired of learning often because they are __________to do more than they can.

He can do better ___ stress.

Tom can't play the match now . Please ______ instead

Modern plastics can _____ very high and very low temperatures

What can I do for you?          .

If something awful happens to you, _________ you can write about it.

— What can I do for you? — ______________