小明用一块橡皮泥做一个圆柱型模型，圆柱的高hcm，底面积s cm²．当圆柱的高为12cm时，圆柱的底面积2cm²．

（1）以h为自变量，求h与s之间的函数关系式；

（2）当圆柱的高为4.8cm时，圆柱的底面积为多少？

He wanted to know _____ the English party. [ ]

A. when will we have

B. when we will have

C. when would we have

D. when we should have