A number of high buildings have arisen ______ there was nothing a year ago.
When I said someone cheated in the English exam, I ______ you.
The road is covered with ice. I can’t understand they insist on going by bike.
______ the employees’ working efficiency, the supervisor will allow them to have a coffee break.
As she is looking forward to ______ from me, please remember ______ this letter on your way to school.
—May I smoke here? —If you ______, choose a seat in the smoking section.