用was were 填空
题目
用was were 填空
1 The students ___at the library last week.
2 Tom ___at home yesterday but his sister___at home
3 Your parents___at the hospital yesterday evening
4 ___you happy yesterday?No,I___not
5 The sink___full and the walls___dirty last month
答案
1.am,is的过去式就是was
are的就是were
2.虚拟语气中,有If I were you.（即;假若我是你.）表虚拟
A：1.were
2.wasn't was
3.were
4.Were was
5.was were
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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