求分析—Do you have any idea when the experiment was carried out?—I hear it was not until last year _____ their plan was approved.A.that B.when C.before D.once
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![求分析—Do you have any idea when the experiment was carried out?—I hear it was not until last year _____ their plan was approved.A.that B.when C.before D.once](/uploads/image/z/12716878-22-8.jpg?t=%E6%B1%82%E5%88%86%E6%9E%90%E2%80%94Do+you+have+any+idea+when+the+experiment+was+carried+out%3F%E2%80%94I+hear+it+was+not+until+last+year+_____+their+plan+was+approved.A.that+B.when+C.before+D.once)
求分析—Do you have any idea when the experiment was carried out?—I hear it was not until last year _____ their plan was approved.A.that B.when C.before D.once
求分析
—Do you have any idea when the experiment was carried out?
—I hear it was not until last year _____ their plan was approved.
A.that B.when C.before D.once
求分析—Do you have any idea when the experiment was carried out?—I hear it was not until last year _____ their plan was approved.A.that B.when C.before D.once
—Do you have any idea when the experiment was carried out?
-- I hear it was not until last year ___when__ their plan was approved.
==it was not until last year WHEN _ their plan was approved THAT the experiment was carried out
===the experiment was carried out LAST YEAR when__ their plan was approved.
选择A;
It was ```that 为强调句型