【单选题】【消耗次数：1】
Our room must ___ clean.
①
keep
②
be kept
③
to be kept
④
to keep
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相关题目
【单选题】
The manager promised to keep me _____ of how our business was going on.
①
to be informed
②
on informing
③
informed
④
informing
【单选题】
The manager promised to keep me ____ of how our business was going on.
①
to be informed
②
on informing
③
informed
④
informing
【单选题】
9. The goal is to keep this land alive, to ______ animal population and keep it growing.
①
insist
②
keep
③
preserve
④
kill
【单选题】
The ____ crown jewels are kept in the Tower of London.
①
valued
②
valueless
③
invaluable
④
usable
【单选题】
-- Sorry I kept you waiting.
①
I’m sad
②
I don’t care
③
That’s all right. There’s no hurry
④
No, not at all
【单选题】
_____and wage increases have not kept in step.
①
Production
②
Product
③
Produce
④
Productivity
随机题目
【单选题】
双胍类药物治疗糖尿病的机制是
①
增强胰岛素的作用
②
促进组织摄取葡萄糖等
③
刺激内源性胰岛素的分泌
④
阻滞ＡＴＰ敏感的钾通道
⑤
增加靶细胞膜上胰岛素受体的数目