— Our teacher wants us to be ______ when we talk with the foreigners.— Yes, we should believe in ourselves.

Houses in Wuxi are now ______ expensive that ______ many people can’t afford ______ them.

My mother likes volleyball. She thinks (认为) it is _______.

—Which subject is _____, Chinese or maths?—I think maths is. 

Please throw the food away. It smells         .