If he ______ it, he _______ it.
. I was really anxious about you. You _______ have left home without a word.
___ reading books in my spare time, I also surf on the internet sometimes.
. Work means much to me. It is ______ of my life ______ air, water and sunlight.
To gain a bigger _______ internationally, many companies are striving to make their products more competitive.
—Tony said he could fix my bicycle, but I really doubt it.—_ __. He's good at that sort of thing.