My suggestion is ________请解释原因

题目

My suggestion is ________请解释原因
A.we should go by bus .B.that we go by bus
C.we may go by bus.D.that we may go by bus

答案

B
suggestion,后面的表语从句的谓语形式是should go,should可以省略.而引导表语从句的that不能省略,所以只能选B
A如果前面有that也是正确的.