题目内容
About 887,000 senior high school students ____ the distance learning courses since the school was set up four years ago.
A.take B. were taking C. had taken D. have taken
D
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题目内容
About 887,000 senior high school students ____ the distance learning courses since the school was set up four years ago.
A.take B. were taking C. had taken D. have taken
D
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