---- Look! A man is cutting a tree on the moon.
----It ______ be true. The teacher said there is no air on the moon.
| A．can’t | B．may not |
| C．shouldn’t | D．mustn’t |
Healthy food and exercise help ________to study better.
A. us B. we C. our
________is dangerous for us to swim in the river alone.
A. It B. That C. This
She likes reading. She usually________ some books from the library.
A. buys B. lends C. borrows
— What do you think of the talk shows hosted by Zhou Libo?
—________. I watch them every week.
A. I love them B. I can't stand them C. I don' t like them
—There _________a big earthquake in Japan this March.
—Yeah. Many Chinese volunteers went there to help the people in trouble.
A. was B. is C. were