—Thespacecrafthasneverbeentoth

—The spacecraft has never been to the moon, ________ ?
—Certainly.

A．has it

B．hasn’t it

C．doesn’t it

D．isn’t it

登录免费查看答案和解析

相关试题

Don’t ______your hope and try again.

A．give up

B．look up

C．wake up

D．make up

收藏答案/解析

We can’t do well in exams we study hard.

A．if

B．and

C．since

D．unless

收藏答案/解析

As a student, it is your to study hard.

A．duty

B．mistakes

C．notes

D．challenge

收藏答案/解析

When I have problems I often ask my father .

A．to helping

B．help

C．for help

D．to help

收藏答案/解析

Can you tell me the best way the problem?

A．solve	B．solved
C．to solve	D．solving

收藏答案/解析