Sandy is a real book -lover and she often brings home many books to read_______ the library.
It is our duty ______much attention to ________ our best to keep our city clean.
If I were you, I’d talk ______someone ______looks friendly.
It took him morning to check outinformation.
I think ________ vocabulary lists ________ us a lot.
---What happened ________Tom? ---He ________because of his drink-driving.