Mr Wang’s never been to Canada , has he?—________. He went there on business last week.

When something __________me, I often ask my friend for help.

Here are two rice cards. Which one belongs to ______?—Look. Here is my name. It must be ____. The other one is yours.

It is said that the gravity on Mars is only aboutof the gravity on earth.

We haven’t got enough books for everyone to have one: some of you will have to ______.