—I hear your journey was not very pleasant.
题目
—I hear your journey was not very pleasant.
—But for the sudden rain we a wonderful time.
A.will have B.should have had C.should have D.had
说明原因
答案
B.虚拟语气,对过去的虚拟用should/would（n‘t) + have+done
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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