Many students ______ changes to show themselves in class because the class size is too big.
Don’t worry. Our teacher will come to show us ______the computer.
If I you,I buy a bike for him.
--Do you know the girl is talking to your teacher? ---She is my new classmate Sarah.
----Who’s the little baby in the photo,Susan? ---It’s me ,this photo ten years ago.
—Mary could swim when she was six years old.--- .