look sad. ____— Oh, my grandmother’s very ill.

Can you come for dinner on Sunday or Saturday—–I’m afraid _______ day is possible.

You’d better go there by train The train ticket is __________the airplane ticket

The boy was having a class when the earthquake broke out in yushuHe could have been killed if he with his family

The article suggests that when a person _________ under unusual stress he should be especially careful to have a well-balanced diet.