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【题目】I failed in doing the experiment several times. My teacher suggested ________again.
A.to tryB.tryingC.tryD.tried
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【题目】Yesterday we did ________experiment in our chemistry class. It's interesting.
A.aB.anC.theD./
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【题目】
A.The bottle is filled with water.
B.The bottle is full of water.
C.The bottle is half full of water.
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