——Dad, must I finish my homework today?
------No, you . You may do it tomorrow.
| A．needn’t | B．mustn’t | C．don’t | D．won’t |
—Don't forget to come to our school assembly(集会)tomorrow morning.
—I won't. Ijust now.
| A．reminded | B．was reminded |
| C．reported | D．was reported |
silk feels soft and cool, it's difficult to be taken good care of.
| A．Because | B．Though | C．Since | D．As |
—Is David coming by train?
—He should, but henot. He likes driving his car.
| A．can | B．need | C．must | D．May |
—The air pollution is terrible.
— It will be worse ________ we take action to protect the environment.
| A．if | B．unless | C．until | D．When |
- Which of the two T-shirts would you like? - ________. I don't like their styles.
| A．Either | B．Both | C．None | D．Neither |