The building _______ the right is our classroom building.What's this _______ EnglishPlease don't be ______ my way.填介词啊

The building (on) the right is our classroom building.
What's this (in) English
Please don't be (in) my way.

The building _______ the right is our classroom building.
答案：on
on the right 在右边
What's this _______ English
答案：in
in English 用英语
Please don't be ______ my way.
答案：in
in my way 挡路