---Dear me! What a wonderful computer! ---My grandpa bought it for my sister and me. It’s ______.

With       help, we finished our work on time.

 These are your English books. But where are ________?

—Mike，is this Tom’s pencil?—Oh，yes，it is         ！

—Which of the caps will you take?—I’ll take _______,one for my father ,the other for my brother.