How this kind of plant can be ____ in a special way is still unknown to us.
The hurricane's arrival and its effects___New York's offices being closed for three days.
The person in front of me at ___checkout was using ___card to check out butfound it wasn't working.
— You couldn't have done a better job for me, Jack!— Thank you, Mr. White. ______.
In order to keep healthy, he _____ an hour every day to take exercise.
Finally they arrived at a place _____ sold cigarettes and some other bargains.