—Whydoyoulooksotired?—Becausew

—Why do you look so tired?
—Because we ________ for three hours without stopping.

A．work	B．worked
C．have worked	D．were working

登录免费查看答案和解析

相关试题

--Your English is so good. Can you tell us ________?
--At home-school. My father taught me.

A．where did you learn it	B．where will you learn it
C．where you learnt it	D．where you will learn it

收藏答案/解析

Her composition is better than .

A． anyone

B． anyone else

C．anyone else’s

D．anyone’s else

收藏答案/解析

Father has had the computer _________. Now it works very well.

A．repair	B．repairing
C．to be repaired	D．repaired

收藏答案/解析

we were walking along the river, we heard a cry for help.

A．While

B．Until

C．After

D．Before

收藏答案/解析

Thank you for offering me _____.

A．so many valuable suggestions	B．so much valuable suggestion
C．so many valuable advices	D．so much valuable advices

收藏答案/解析