some of the apples were rotten before reaching the market and----away.

题目

some of the apples were rotten before reaching the market and----away.
acould be thrown bhad to be thrown ccould throw dhad to throw求大侠帮忙分析分析

答案

选B.
苹果是被扔掉,用被动语态,排除C、D.A项的could是“能”“可以”,不合题意.
商家一般不舍得扔掉苹果,但是苹果烂了,不得不扔掉.had to就是“不得不”的意思.