首页 > 留学知识库

问题: 模拟卷6-32

_____ was carried out last December in five cities and seven countries across china.
A. The ten-day-long survey B. The ten-days-long survey
C. The ten day long survey D. The ten days long survey
请详细写出解题的过程和思路。

解答:

选A. The ten-day-long survey ,ten-day-long 是复合形容词做前置定语,中间有连字符号,不用复数形式。