Yearsagowedidn’tknowthis,butre

Years ago we didn’t know this, but recent science ______that people who don’t sleep well soon get ill.

A．showed

B．has shown

C．will show

D．is showing

登录免费查看答案和解析

相关试题

Seeing the happy _________of children playing in the park, I’m full of joy and confidence in the future of our country.

A．sight

B．scene

C．view

D．sign

收藏答案/解析

We could see the temple quite clearly from _________we lived.

A．what

B．which

C．where

D．that

收藏答案/解析

We’re looking forward to _______a chance to watch the opening ceremony of the London 2012 Olympic Games.

A．give

B．be given

C．giving

D．being given

收藏答案/解析

.It was ________ that the PLA men got to the earth-strike area.

A．midnight

B．at midnight

C．until

D．for midnight

收藏答案/解析

--------Have you asked somebody to repair the machine?
--------Oh, sorry, I forgot it. I _________for an engineer at once.

A．am going to send

B．would send

C．have sent

D．will send

收藏答案/解析

推荐套卷

热门套卷