Most people like eating sandwiches but a few know the history of them (改错）解释句意并说明理由
问题描述：
Most people like eating sandwiches but a few know the history of them (改错）解释句意并说明理由
答
将句中的a删除.
few是否定意思,表‘几乎没有’的意思.
a few是肯定意思,表‘有些’的意思.
全句的正确理解为：很多人喜欢吃三文治,但几乎没有人知道关于三文治的历史.
关键是理解到,but表达转折的意思.
所以,用few,不用a few.