83. The whole class, _____ our head teacher, went out to give our school a spring-cleaning the other day.

A．contains

B．includes

C．containing

D．Including

中国体育健儿实现奥运历史上零的突破是在     奥运会上。

A．莫斯科

B．洛杉矶

C．悉尼

D．雅典