-           do you go to work every day? -By bike.

—_____do you go to the gym?—Twice a month.

I hear they are going to London, but I don’t know ________ they will stay there.

—Liu Qian is good at doing the tricks with the cards.—Yes, but if you watch carefully, you can see _______he does them.

— Mum, ______ are my shoes?— Under your bed. You should put away your things.