(届陕西省五校联盟高三第二次模拟考试英语试卷)
Be careful when you deal with this chemical, as it will explode when ______ to sunlight.
A.exposed | B.to expose | C.exposing | D.being exposed |
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(届陕西省五校联盟高三第二次模拟考试英语试卷)
Be careful when you deal with this chemical, as it will explode when ______ to sunlight.
A.exposed | B.to expose | C.exposing | D.being exposed |