i don t know where_____.（travel）.应该怎么填?

i don t know where_____.（travel）.应该怎么填? Oh,sorry!i really don't know hao--（do）it.应该填什么? She doesn't know where_____(visit)this summer holiday. 的空填什么 I don t know where to travel.为什么不是where to travel to? What’s this___English?Sorry.I don’t know.应该填啥? 选词填空.（英语 .一.am is are do does can don't---Where_____ i ---Yo I don't know which shoes i should choose应该怎么解释. I don't know how i can go to the zoo 应该怎么做这类题 i don't know怎么读 I don't know Japanese怎么回答 i don't know怎么翻译? I don‘t know