Whileotherscientistsarekeeping

首页 / 高中英语 / 试题详细

更新 2022-09-03
科目英语
题型单选题
难度较难
浏览 1608

While other scientists are keeping__ __eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in __ __humans.

A．a , /

B．an, /

C．the, an

D．an, the

登录免费查看答案和解析

相关试题

The fact that so many people still smoke in public places ________ that we may need a nationwide campaign to raise awareness of the risks of smoking.(2011·江苏)

A．suggest

B．suggests

C．suggested

D．suggesting

题型：未知
难度：未知

收藏答案/解析

“Life is like walking in the snow，”Granny used to say，“because every step ________.”(2012·新课标全国)

A．has shown	B．is showing
C．shows	D．showed

题型：未知
难度：未知

收藏答案/解析

He was unhappy when he sold his guitar.After all，he________it for a very long time.

A．has had	B．had had
C．has	D．had

题型：未知
难度：未知

收藏答案/解析

—Oh no! We're too late.The train________.
— That's OK.We'll catch the next train to London.

A．was leaving	B．had left
C．has left	D．has been leaving

题型：未知
难度：未知

收藏答案/解析

—Could I use your car tomorrow morning?
—Sure.I________a report at home.

A．will be writing	B．will have written
C．have written	D．have been writing

题型：未知
难度：未知

收藏答案/解析

推荐套卷

热门套卷

粤ICP备20024846号

粤公网安备 44130202000953号

声明：本网站部分内容由互联网用户自发贡献自行上传，本网站不拥有所有权，也不承担相关法律责任。
如果您发现有涉嫌版权的内容，欢迎发送邮件至：service@youtike.com 或联系QQ：267757 进行举报，一经查实，本站将立刻删除涉嫌侵权内容。