Li Ping sits ___ the back of the classroom.He sits ___ the back row.填什么介词,特别是第一空?in 还是at?
问题描述：
Li Ping sits ___ the back of the classroom.He sits ___ the back row.
填什么介词,特别是第一空?in 还是at?
答
at,in这是固定短语，at the back of...在...的后面。in the row在排里
答
at ,in