— How many students in your class have visited the White House? —______.
All the adults were killed in the accident, but the two-year-old boy______ alive.
We all like playing sports, so ______ students ______ basketball every day.
The water is not ______. Add some more sugar, please.
The MP3 is used for _______ music.
–Where is my pen? --Oh, sorry, I have taken yours ____mistake.