B
只要是两者共同的东西,就是 A and B's父母是他们共同的父母,所以选B
如果是不是共同拥有的东西,就是 A's and B's,如:Jane's and John's desk are over there.
C答案则完全错误,they的物主代词应该是their,they's=they is
B
只要是两者共同的东西,就是 A and B's父母是他们共同的父母,所以选B
如果是不是共同拥有的东西,就是 A's and B's,如:Jane's and John's desk are over there.
C答案则完全错误,they的物主代词应该是their,they's=they is