A、满足不孕妇女养育孩子的正当愿望
B、满足代理母亲乐意助人的良好愿望
C、代孕是一种合作生殖
D、代孕可能引起的商业化问题可以通过管理解决
Itisdifficultto________theimplicationbetweenthelines.
A、getto
B、getwith
C、getat
D、getdown
Theprofessoraskedaquestion,andDavid________agoodanswer.
A、putupwith
B、stoodupfor
C、cameupwith
D、lookeddownupon
Hewouldhavegivenyoumorehelp,ifhe________sobusy.
A、havenotbeen
B、hadnotbeen
C、nothavebeen
D、nothadbeen
Thefurnitureinherbedroomisquitedifferentfrom________inthelivingroom.
A、that
B、it
C、one
D、which