是in vacation,还是on vacation,还是atvacation?
是in vacation,还是on vacation,还是atvacation?
应该用in vacation还是on vacation
请问是in summer vacation还是on summer vacation?
是on vacation还是on a vacation
是go on vacation 还是go on a vacation?是go for vacation还是go for
vacation 前用什么介词?是in?还是on?
是in summer vacation还是in the summer vacation啊?
是travel to vacation,还是travel on vacation
go on vacation还是go on a vacation?
在my summer vacation前面有on还是in.
vacation前的介词用on还是in?
我去年在北京度假用英语怎么说?是in vacation还是on vacaton?