1 . 并不是所有的学生都理解了这个问题。
________ ________ students have understood the question.
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10-11高三·江西南昌·阶段练习
2 . That is secret． ．
| A．Only knows Mary how to do it | B．Only does Mary know how to do it | C．Only Mary knows how to do it | D．Mary knows only how to do it |
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