--Why don’t you get the book? --That’s ____.
The railway _______ Qinghai to Tibet is the longest plateau (高原) railway in the world.
If we don’t study hard, we will in our class.
----Would you like some coffee?----Yes, and please get me some milk, too. I prefer coffee _______ milk.
It’s believed that our moods are sometimes by colours. Many scientists are doing some research (研究) on this subject.
---- Do you know MoYan, the first Chinese citizen to win the Noble Prize?---- Yes, of course, his books are worth ________.