肯定是 were testing
went
We __________ (test) the new machine when the electricity __
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相关问题
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选择 We______the test when the bell rang.
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when do we have the t____ tests?
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the problem is (how) we can( operate) the new machine( on) s
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the scientists are going to test out the machine
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When we heard the good news, we felt _______. [ &
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When we heard the good news ,we all ()happily
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After ＿(test) the machine,they began to work.
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the new machine can ____ automatically
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We were doing martial arts at the gym when we heard the news
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when we heard the news,we all got excited同