This picture was taken a long time ago. I wonder if you can 　　　 my mother.

Tom and Mike are good friends. _____ often help each others.

Joan writes ____than she did 2 years ago.

Must I buy lunch at school?—No, you needn’t. You __________ bring your own lunch if you want to.

Take great pains to read _____ you can or you won’t have a better understanding oflife．