- 二一组卷

题型：语法填空（单句）题类：难易度：普通

北师大版（2019）选择性必修第四册Unit 11 Conflict and Compromise 情态动词基础练习

The importance of saving gas not be stressed too much. Automobiles use up some 70 billion gallons of gas a year.（填写适当的情态动词）

举一反三

— ________. Nobody is perfect.

— Sorry, sir. But it is the management rule of our hotel that payment _____ be made in cash.

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