作业帮高一英语 情态动词判断正误1 They ought to help that old lady,oughtn't to
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高一英语 情态动词
判断正误
1 They ought to help that old lady,oughtn't to they?
2 You don't have to come if you don't want to.
3 But for the heavy rain,they ought to arrive early.
4 We have not to hand in the paper right now.
5 He doesn't have to work so late at night.
6 They mustn't have told the bad news to the girl because she looked happy.
要说明原因 谢谢
判断正误
1 They ought to help that old lady,oughtn't to they?
2 You don't have to come if you don't want to.
3 But for the heavy rain,they ought to arrive early.
4 We have not to hand in the paper right now.
5 He doesn't have to work so late at night.
6 They mustn't have told the bad news to the girl because she looked happy.
要说明原因 谢谢
F （ought to 的反意疑问句形式是oughtn't或shouldn't ,不需要to）
T
F （此句有虚拟语气,“要不是下雨,他们应该到了“.所以,ought to arrive 改为should have arrived）
F （have to 的否定式是 don't have to,不能在have后面加not）
T
F （mustn't have told 改为 shouldn't have told）
如不明白,
T
F （此句有虚拟语气,“要不是下雨,他们应该到了“.所以,ought to arrive 改为should have arrived）
F （have to 的否定式是 don't have to,不能在have后面加not）
T
F （mustn't have told 改为 shouldn't have told）
如不明白,
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