Food safety is important. Rules _____ to stop people from food pollution.
A．must makeB．must be madeC．mustn’t makeD．mustn’t be made
B

試題分析：句意：食品安全很重要。必須制定措施保護(hù)人們遠(yuǎn)離食品污染。結(jié)合語(yǔ)境可知本句主語(yǔ)是動(dòng)作對(duì)象，故用被動(dòng)語(yǔ)態(tài)，選B。
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