用“there is,there are,there was or there were"填空
题目
用“there is,there are,there was or there were"填空
1.____a radio on the table.____tow watches in the box...
2.____a farry 20 year ago.____not many people in the city,either.
3 ____an English test next week.
4.____a lot of trees before?No,there weren't.
5____many students at school?Yes,there are.
答案
there is there are
there was there were
there is
there were
there are
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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