—Tell me, Grandma. ________ is your favourite person in the whole wide world?
—That’s easy! It’s you!
What
Who
How
Whom
There is nothing in the fridge, _________?
Look! She _______ a smile on her face and _______ happy.
Who’s _________ in China, Yao Ming or Liu Xiang?
I think he is _________ of us two.
----- I’m too busy_____ to my family often.---Why not call them instead?