Every year a flood of farmers arrive in Shenzhen for money-making jobs they _____ before leaving
题目
Every year a flood of farmers arrive in Shenzhen for money-making jobs they _____ before leaving
A promised B were promised C have promised D have been promised
答案
D
A B 时态与前文不一致
从句中的they （指 farmers )不可能是promise 的执行者,无疑是人家对他们许诺什么什么赚钱,于是便去了深圳.所以选被动式
请及时采纳,不懂继续问( 天天在线 ）
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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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