Mr.Jackson wants to travel a___ the world.But he hasn't got e___ money.He thinks that he can take a free r___ on his bicycle.

问题描述:

Mr.Jackson wants to travel a___ the world.
But he hasn't got e___ money.
He thinks that he can take a free r___ on his bicycle.

第一个 a round
第二个 e nough
第三个 r ide
riding 是动词,这里应该用名词 ride