They should have cut away the jungle brush, but they ______.

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问题 They should have cut away the jungle brush, but they ______.

选项 A、don’t
B、didn’t
C、won’t
D、shouldn’t

答案B

解析 此题考查时态,前一句话用了虚拟语气should+have+done的结构,可以得出是对过去事实的假设,因此,后句"没做"是过去的事实。
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