-- _____is that used for?---_____ the floor.
These mistakes are very___________ among students, so we’re not surprised if you also make such mistakes.
Everybody was touched ___________ words after they heard her moving story.
— Alice told me you called yesterday.— Yes, I had a problem with Jane, ___________I thought you could help me with, but you were not in.
If anyone happens to drop in while I am out, _________ him or her leave a message.
With a lot of problems __________, the new government is now having a hard time.