6. his group is making a list [ ]rules[ ]the grass.
问题描述：
6. his group is making a list [ ]rules[ ]the grass.
答
6.his group is making a list [of ]rules[ to protect]the grass.
他的小组列了一列保护小草的规则.
无疑后请采纳.
书山有路勤为径,学海无涯苦作舟.
-----------与君共勉-----------