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 1565

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

________ advertisements are of great help, I don’t think we should entirely rely on them.

A．Because

B．Since

C．Once

D．While

题型：未知
难度：未知

收藏答案/解析

Mary ____ be in Paris . I saw her a few minutes ago .

A．mustn''t

B．shouldn''t

C．can''t

D．may not

题型：未知
难度：未知

收藏答案/解析

----I didn’t realize how popular the restaurant was until I made a reservation the other day.
----I beg your pardon, but when?

A．was you realized it	B．it was that you realized it
C．you realized it	D．was it that you realized it

题型：未知
难度：未知

收藏答案/解析

--Mom, can we move into our new house this weekend?
---No, it _________.

A．is painted

B．is painting

C．was painted

D．is being painted

题型：未知
难度：未知

收藏答案/解析

---- Why have you bought so much food ?
----My good friends ________ to stay with me for the weekend.

A．are coming

B．have come

C．come

D．will have come

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。