Did you see Betty at the party last night?Yes,she ()a very nice skirt A wears B wore C was wearing
题目
Did you see Betty at the party last night?Yes,she ()a very nice skirt A wears B wore C was wearing
D had worn为什么选C不选B
答案
C.因为在回忆昨晚在PARTY的现场,BETTY是穿了,用WAS WEARING.
如果没有上下文特指昨晚的PARTY,就用SHE WORE A DRESS YESTERDAY.就可以.
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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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