The building has ____ floors. And John lives on the ____ floor.A. twelve, twelveB. twelve, twelfthC. twelfth, twelfth
—How long will the summer English courses ? —For six weeks.
Smile to the world, the world will smile back to you.
A person who will travel to a foreign country must carry a .
The beginning to the movie was boring, the end was amazing!
David, get up early, ______ you won’tcatch the early bus.