对括号部分提问：1.We bought (slice of pizza) yesterday.2.They ate some ice cream (this morning).
题目
对括号部分提问：1.We bought (slice of pizza) yesterday.2.They ate some ice cream (this morning).
还有：
3.(We) bought some book this afternoon.
4.They bought (some newspapers) this afternoon.
答案
1 What did you buy yesterday?
2 When did they eat the ice cream?
3 Who did buy any books this afternoon?
4 What did they buy this afternoon?
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
最新试题
热门考点