There are over ______ books of all kinds in the library.
To our _________, Hawking didn’t worry about his problems in the slightest, _________, he just face the problems.
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.