What’s troubling him? ______did Jim look quiet with his friends around. –He’s considering a new project in his company.

Why does your brother _______ a sad look on his face these days?

Teresa has got two pets. One is a white cat, and is a yellow dog.

When shall I call you back, in the afternoon or evening— ________. I’ll be in all day long.

Many crimes are committed by some badpeople， an example of which is fraud， a crime money is stolen by cheating others.