—How well do you know the Opera House?

—I know the place very well. I _______ Sydney many times. [ ]

A. have been in

B. have been to

C. have gone to

D. have arrived in

下列关于new运算符的描述中错误的是

A．使用运算符new创建对象数组时必须定义初始值

B．使用运算符new创建对象时，会调用类的构造函数

C．运算符new可以用来动态创建对象和对象数组

D．使用new运算符创建的对象可以使用运算符delete删除