—He got the first prize in a National Contest of Popular Music.

—Oh. That’s what he _____ for years.

A．had been expecting

B．has expected

C．expected

D．has been expecting

下面程序的运行结果是 ______。
#include＜iostream.h＞
class A
public
virtual、~() cout＜＜”call A:: ～A()”＜＜end1；
；
class B：public A
B(int i)p=new char[i]：
-B()
delete[)p；
Cout＜＜”call B:: ～B()”;

；
void main()
A*a=new B(8)；
Delete a；

A．call B:: ～B()

B．call B:: ～B()

C．call A：～A()

D．call A::～A()