—What’s this? —It’s ________ pen. A. a B. an C. /
---When was he born? ---He was born ________themorning________June5.
Book One is ________ than Book Two. Do you think so?
Robert is ______ tired ______ move after the hard work.
He eats ________ food, so he is _________ fat.
I love nature. I want to move in the future.