Our headmaster isn’t in his office. I can’t find him anywhere. Did you notice him ______ the office?
1 read an article _______ Mo Yan from China.
We are all _______ to hear the_story.
Jimmy and Timmy are both 50 kg, that is to say, Jimmy is _______Timmy.
China is one of _______countries in the world.
. --________? --He’s friendly and helpful. He often helps me with my homework.