there is only a desk in the classroom 转换为there is 空 in the c

第一个空填 nothing
第二空填 but
There is nothing in the classroom but a desk.
教室里除了一张桌子以外,什么都没有.
再问： i'm sorry i come late to school 转换为Excuse me 空 my 空 late to school
再答： Excuse me for my coming late to school. 请原谅我上学迟到。
再问： My pen-friends often write letters to me 转换为i often 空 空 my pen-friends
再答： i often hear from my pen-friends hear from 收到...的来信