I ____ an old friend of mine when I ______ in the street yesterday afternoon.
--- _____ does your father usually go to work? ---By car. A. How B. What C. How often
-What is your father doing now? -He ________ the room.
Ann has a new Iphone 4s, ______?
It was the coldest winter, and many animals died __________ the cold.
______ is too difficult if you put your heart into it.