Our special thanks go to thousands of volunteers, without ________ tireless work, none of this would be possible.
The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.
―When do we need to pay the balance ? ― September 30.
It’s quite me why such things have been allowed to happen.
My sister was against my suggestion while my brother was_________it.
There were a lot of people standing at the door and the small girl couldn’t get _______.