根据句子意思及所给的词首字母或汉语提示，完成下列单词。（5分）

小题1:Some people                (浪费) food while others don’t have enough food to eat.

小题2:Linlin is good at English, but I’m w               in it.

小题3: In the past, few children had the chance to receive a good              （教育）.

小题4:—Have you ever been a             _?

—No, I have never been to any foreign country.

小题5:You can’t learn English well u               you work hard.

下列对类的构造函数和析构函数的描述中，正确的是( )。

A．构造函数可以重载，析构函数不能重载

B．构造函数不能重载，析构函数可以重载

C．构造函数可以重载，析构函数也可以重载

D．构造函数不能重载，析构函数也不能重载