the expression on his face suggested that he angry so i suggested that his wife shouting at him and let him calm downa shuould be ;stoppedb was ;stop c was; stopped d should be ; should stop

the expression on his face suggested that he angry so i suggested that his wife shouting at him and let him calm downa shuould be ;stoppedb was ;stop c was; stopped d should be ; should stop
the expression on his face suggested that he angry so i suggested that his wife shouting at him and let him calm down
a shuould be ;stopped
b was ;stop
c was; stopped
d should be ; should stop

the expression on his face suggested that he angry so i suggested that his wife shouting at him and let him calm downa shuould be ;stoppedb was ;stop c was; stopped d should be ; should stop
B
the expression on his face suggested【暗示,表明】 that he【was】angry so i suggested【建议】 that his wife 【（should）stop】shouting at him and let him calm down
suggest 作暗示,表明 讲时 用陈述语气
suggest 作建议 讲时用虚拟语气 （should) + 动词原形 【should可省】

b