should,must,can, may, shall, could, might的用法答:should,must,can, may, shall, could, might属于情态动词,他们的的基本用法1、can / could1)表示能力,could主要指过去时间。Two eyes can see more than one. “ 两只眼比一只眼看得清。Could the girl read before she went to school? 这女孩上学前能识字吗?2)表示可能(理论上或是逻辑判断上)。The tem...