英语翻译1.She is my aunt _________ my mother’s _________.A in ;

英语翻译
1.She is my aunt _________ my mother’s _________.
A in ; side B in; sides C on; side D on; sides
2 --- Let’s go and have a good drink tonight.
--- ___________ Have you got the first prize in the competition?
A What for B Thanks a lot.
C Yes,I’d like to.D Why not
3 He had finished his book ________ 10 o’clock yesterday.
A at B by C about D in