They should have gone earlier, ______?

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问题 They should have gone earlier, ______?

选项 A、have they
B、didn’t they
C、haven’t they
D、shouldn’t they

答案B

解析 didn’t they本题考查虚拟语气，should have gone是对于过去事实的虚拟，所以反意疑问句用助动词do的过去式。

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大学英语三级B级

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