We're looking for a quiet place to go on vacation.
We're looking for a quiet place to go on vacation.
Look at those travel posters.I'd love to go on a vacation.
Where would you like _____ vacation,Sam?
A going on B to go on C to go on a D going on a
(答案是B)
请问这里go on vacation为什么有的有a有的没有,到底怎么回事?[展开]