------class (half an hour) 用括号中名词的所有格修饰给出的名词

问题描述:

------class (half an hour) 用括号中名词的所有格修饰给出的名词
1.------class (half an hour)
2.------things(parents)
3.------car(charles and phil)(两个人共同拥有的车)
4.------car(charles and phil)(两个人各自拥有的车)

half an hour’s class
parents’ things
charles and phil’s car
charles’s and phil’s car