初二英语one of the _________(advantage)of doing exercise is that
初二英语one of the _________(advantage)of doing exercise is that it's a goos way to keep healthy.
one of the _________(advantage)of doing exercise is that it's a goos way to keep healthy.(用括号内适当形式填空)
疑问:我填的是advantages可是答案没有加s为什么?不是前面有one of吗?求高人详细解答.