In order to earn more money for his new car,the young man has to work for three _____ hours in the evening.

问题描述:

In order to earn more money for his new car,the young man has to work for three _____ hours in the evening.
  A.extra B.other C.another D.else
选什么?请详细说一下几个词有什么区别?

答案是A记住:another three days three other daysthree extra daysthree more days(注意more ,other,another ,extra 的位置)疑问代词,疑问副词 + else who elsewhat elsewhere else