Scientists said the smaller the airborne particles, the more ______ they are to cause illness.
A.possibleB.likely
C.probableD.perhaps
B

試題分析:考查形容詞。本題考查短語(yǔ)的固定搭配:be likely to有可能……。句意:科學(xué)家說(shuō),空氣塵埃粒子越小,它們?cè)斐杉膊〉目赡苄栽酱蟆9蔅正確。
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