Tom, can you answer my question? - Er, I’m very sorry, Miss Evens. I ______ about something else.

Tom, can you answer my question? - Er, I’m very sorry, Miss Evens. I ______ about something else.

题目
Tom, can you answer my question? - Er, I’m very sorry, Miss Evens. I ______ about something else.
A. have thought B. was thinking C. will think D. had thought
为什么是B?
答案
首先肯定的是:时态用过去式,对吧?因为是刚才想事情,走神了.
再者,想事情是进行时,这个学生现在是对刚才的情况说明了一下
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.
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奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
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