摘要：The professor requested that all the students the reports at once. A.would hand in B. hand in C. handed in D. handing in
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The professor requested that all the students _______ the reports at once.
A. would hand in B. hand in C. handed in D. handing in
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The professor requested that all the students _______ the reports at once.
A. would hand in B. hand in C. handed in D. handing in
查看习题详情和答案>>The professor requested that all the students _______ the reports at once.
| A．would hand in | B．hand in | C．handed in | D．handing in |