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WHEN THE STUDENTS_____ THE EXPERIMENT, THE ELECTRI...
WHEN THE STUDENTS_____ THE EXPERIMENT, THE ELECTRICITY _____ OUT.A...
File thứ 15: Anh 10
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16. When the students_____ the experiment, the electricity _____ out.
A. were doing / were going B. were doing / went C. did / went D. did / were going
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16.
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File thứ 15: Anh 10