When I tried to find _________that prevented so many people from taking part in the program, it seemed to me that there were two main reasons.
Flight BA 123 to Vienna is now boarding at_______.
He didn’t seem to mind_____________ TV while he was trying to study
I don't skate now, but I___________ when I was a kid.
We liked the oil painting better____________ we looked at it.
We must keep our room clean. Dirt and disease go ____________, you know.