—Put these glasses away before they        ．
—OK．I'll put them in the cupboard．
A．have brokenB．a(chǎn)re breakingC．will be broken D．get broken
D

試題分析：句意：趁著這些玻璃杯還沒有被打破將它們收好。Before引導(dǎo)的是時間狀語從句，在時間狀語從句中，用一般現(xiàn)在時代替一般將來時，而且glasses和break是被動含義，用一般現(xiàn)在時的被動語態(tài)。選D。
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