选择The doctor worked for-----after twelve o'clock.

选择The doctor worked for_____after twelve o'clock.
1.
The doctor worked for_____after twelve o'clock.
A.two more hours
B.two another hours
C.more two hours
D.other two hours
2.
Forty minutes_______for the children to finish all the work.
A.is quite a long time
B.are quite long
C.was a quite long time
D.were quite long time
3.
you _______read the book if you don't want to.
A.haven't
B.can't
C.mustn't
D.needn't
请陈述你的理由