It takes me half an hour ________ the piano every day.A.playB.playingC.to play
—Look! What a nice car! Whose car is this?—It __________ Mr. Liu, I saw him driving it yesterday.
If you have __________ where my lock might be, please tell me at once.
Some of the artist’s paintings are __________ in this exhibition in our City Museum.
Boys and girls, __________ you choose to wear, your clothes should be clean.
Some people say that the world is becoming smaller than before __________ the Internet.