【单选题】【消耗次数：1】
4. Our room must ___ clean.
①
keep
②
be kept
③
to be kept
④
to keep
参考答案：
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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
【多选题】
影响素质教育实施的社会多方面的不利因素（）
①
A校外补课、培训机构杂草丛生
②
B不法商人在学校周围兜售劣质的玩具和不洁的食品
③
C有些家长对独生子女过渡教育，请家教，送孩子到各种补习班
④
D把许多社会问题归罪于学校教育