Knowing how to do in case of fire is important. If a fire break out, what would you do? Fi

Knowing how to do in case of fire is important. If a fire break out, what would you do? First, you should warn everyone in the building about the danger. Don’t panic or start shouting. Be calmly and act quickly. Second, you and all the others should be get out of the building. Don’t stop take anything with you. Once you are out of the building, stay out. Do not go back for some reason. Finally, when you are out of the building, calling the fire police. Don’t try to put off the fire yourself. That can be dangerous if you do. 第一句话 how改为what

(答案→)第一句话 how改为what 解析：【小题1】第一句话 how改为what 本句中的what to do 作为动词know的宾语，并在句中作为do的宾语。【小题2】第二句话 break改为 broke 本句是一个虚拟语气，与现在事实相反，条件句中使用一般过去时。【小题3】第三句话 about改为 of 固定搭配warn sb of 警告某人…；【小题4】第五句话 calmly改为calm 本句是一个祈使句,系动词后面接形容词构成系表结构。【小题5】第六句话 划掉be 情态动词后面要接动词原形，be是多余的。【小题6】第七句话 stop和 take之间加 to 固定搭配stop to do sth停下来做另外一件事情。【小题7】第九句话 some 改为any 本句是一个否定句，故使用any而不是some。【小题8】第十句话 calling改为call 本句是一个祈使句，后面的主句使用动词原形。【小题9】第十一句话 off 改为out 固定搭配put out扑灭。Put off推迟。【小题10】第十二句话 do之后加 it或 so或 that 动词do是一个及物动词，后面要接宾语，使用it作为宾语，或者使用so，that做宾语。

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