英语单项选择,请详细说明选择理由.
1.He prefers __________rather than __________the train.
A.walk; take B.to walk; to take C.to walk; take D.walk; to take
2.We have __________many difficulties these years.
A.gone over B.gone on C.gone out D.gone through
3.Peter__________ his best friend in the street yesterday.
A.ran after B.ran away C.ran out D.ran across