.Bytheyear2020scientistsalotof

首页 / 高中英语 / 试题详细

. By the year 2020 scientists _____ a lot of research on AIDS.

A．had done

B．do

C．are doing

D．will have done

登录免费查看答案和解析

相关试题

Before I made any attempt, I used a stick to test the depth of the river, and _________ at the great depth of it, not daring to take further action.

A．charged	B．watched
C．adventured	D．choked

收藏答案/解析

To his _________, Jack never told anyone exactly what had happened.

A．credit

B．delight

C．joy

D．pessimism

收藏答案/解析

I don’t know who sent the gift, but I’ll make a careful _________.

A．investment

B．challenge

C．enquiry

D．guide

收藏答案/解析

Arriving late won’t create a very favorable _________.

A．concentration	B．impression
C．description	D．imagination

收藏答案/解析

---What would you say to a glass of beer?
---___.

A．Good idea	B．Cheers
C．Delicious	D．Never mind

收藏答案/解析

相关知识点

动词语态

推荐套卷

热门套卷

粤ICP备20024846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。