peter,who had been driving all day,suggested stopping at the next town.

为什么用stopping而不用to stop

suggest 是个及物动词，后面可以跟名词、代词、动词 -ing 形式或从句作它的宾语。没有to do 用法

suggest只可接动名词做宾语 I suggested putting off the sports meet.我建议将运动会延期。 再看看别人怎么说的。