题目内容
【题目】( ) It’s important _________ with fire.
A. to careful B. being carefully C. to being careful D. to be careful
【答案】D
【解析】句意:小心防火非常重要。it’s +adj+to do做……是……的,固定句型,be careful with小心……固定短语,故答案选D.A项中careful为形容词,不能接在to后面,排除A; B项不符合固定句型,排除B; C项to后接be,排除C.
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