怎么就你一个人?你的朋友呢?我只听懂一点英文>英文怎么说

Why there are only you here?
Where is your friend?
I just can understand a little English.

一楼应该是Can just 二楼应该是only know

How would a person do you? Your friends? I only understand a little English

Why are you alone? Where are your friends? I know only a little English.

Are you alone? where are your friends going? I just understand a little English.