Our planet is about ______ years old.
| A．35,000 | B．4600 | C．4600 million | D．500 million |
–Must I return the story book tomorrow, madam?
–No, you ______ bring it here next Monday.
| A．may | B．must | C．mustn’t | D．maybe |
It’s too hot outside, so we decide ______ out.
| A．going | B．to go | C．not going | D．not to go |
— Which of the caps will you take?
—I’ll take______ , one for my father, the other for my mother.
| A．neither | B．both | C．all | D．either |
Never lose heart. I believe you will make a ________this term as long as you are more hard-working.
| A．different | B．difference | C．difficult | D．decision |
—Tara and Tina are like each other.
—But_____what ways is Tara the same_____Tina?
| A．on, with | B．on, as | C．on, with | D．in, as |