—Mum, I've finished my work.—Good, and ________ you choose to play on your PSP or listen to music on your iPod, you mustn't disturb me.
----- Did you buy the dictionary?---- No. My lost dictionary was found, so I ________ a new one.
I walked as fast as I could, ________to catch the 930 train.
The dog has a(n) _______ sense of smell while the rabbit has a sharp sense of hearing.
-- How do you think I should respond to his words?--- You can do it ______ you like.
How he wishes he had a family _____ both his parents would treat him like a friend.