They waited at the bus stop and about five minutes later the bus they wantedalong.A. comin

问题补充：

They waited at the bus stop and about five minutes later the bus they wantedalong.

A. coming

B. came

C. to come

D. had come

答案：

A. coming

B. came

C. to come

D. had come

解析：考察句子结构。定语从句they wanted修饰名词the bus,came是真正的谓语动词，故B正确。