—How long can I keep the book? —A week. You _____to return it by Monday.
—You've dropped ________ “s” in the word “acros”.—Oh, ________ letter “s” should be doubled like this “across”.
We Chinese have a dream— ________ dream to turn a welloff life into ______ reality by 2020.
The teacher praised me for ________ progress I'd made, which was ________ great encouragement to me.
Liang Bo, the champion of the Voice of China, is a man of ________ few words but has ________ remarkable inner strength.
Your cousin is said ________ a new computer program recently, but do you know when he will finish it?