Hewouldhavegivenyoumorehelp,ifhe________sobusy.
A、havenotbeen
B、hadnotbeen
C、nothavebeen
D、nothadbeen
Nosoonerhadwereachedhome________aviolentstormbrokeout.
A、when
B、that
C、until
D、than
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
Jennycomplainedthatthehospital________hertoomuchforthetreatment.
A、expended
B、paid
C、cost
D、charged
Itrainedhardyesterday,______preventedmefromgoingtothepark.
A、that
B、which
C、as
D、it