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2—Where___ Mary have put the empty bottles?— She ___ them away. They must besomewhere. A. can; can’t have thrown B. must; needn’t C. must; must have thrown D. can; mustn’t have thrown 3—Where ___ Margaret have put the empty bottles?—She ___ them away. They m...
— Where___Mary have put the empty bottles?—She ___them away.They must be somewhere.A. can;mustn't have thrown B. must;needn't have thrown C. could;couldn't have thrown D. should;might not have thrown 相关知识点: 试题来源
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A. can; can B. t have thrown C. must; needn D. t E. have thrown F. can; must throw 相关知识点: 试题来源: 解析 . A 本考情 +have done 表示 去事 的推 的用法。 must have done 用于必定句中, 疑 句否定句中 用 can could 取代 must。故 A 。反馈 收藏 ...
1—Where can Margaret have put the empty bottles?—She them away. They must be somewhere. A. can't have thrown B. shouldn't have thrown C. must have thrown D. might have thrown 2【题目】-Where can Margaret have put the empty bottles?Shethem away. They must be somewhere. A. can...
A 本题考查情态动词+have done表示对过去事实的推测的用法。must have done用于肯定句中，疑问句否定句中应用can could代替must。故选A。
在进行钢梁修理或上盖板涂装时，可根据施工需要移动（ ），但移动后，每根 桥枕的钩螺栓、道钉或分开式扣件应齐全、有效，固定枕木的拉条保证枕木间距 不变化；移动后的桥枕中心间距不应超过 （ ）mm,个别情况不得超过600mm,而接头处桥枕净距不得超过210mm。
— Where Margaret have put the empty bottles? — She them away. They must be somewhere. A: can; can't have thrown B: must; needn't C: must; must have thrown D: can; must throw 相关知识点: 试题来源: 解析 A 考查情态动词。情态动词+have done表示对过去事实的推测的用法。must have ...
—Where ___ Margaret have put the empty bottles —She ___ them away. They must be somewhere. A.can; can’t have thrownB.must; needn’t C.must; must have thrownD.can; must throw 请仔细审题,看清楚题目要求,认真作答! 正确答案