i usually go to work () bus we go to hainan provi

题目

i usually go to work () bus we go to hainan provi
i usually go to work () bus
we go to hainan province () plane
l want some chalks,() you have one?
he lives () playing violin
the teacher picks up a () of chalk from the chalk box
括号里分别填什么

答案

答案分别是by,by,do,不填或者填斜杠,piece