几道英语的填空题

1,Tom is the most excellent______ student in our school.
2,She was o_perated______on in the hospital yesterday and the doctor saved her life.
句型转换的填空
1,Sandy likes drawing and reading.[改否]
Sandy likes ___both_____drawing ___and_____reading.
2,Mother often buys me some presents .[改同]
I___am____often __bought_______some presents by my mother.
3,They couldn't catch the train because of the heavy rain.[改同]
The heavy rain ___prevented______them from ___catching_______the train.
4,My cousin took part in the Army three years ago.[改同]
My cousin has __been_____ ___in____ the Army for three years .

excellent
operated
both and
am bought
keep from(prevent好象是预防）
been in