--I know this is the latest type but it's second hand. $20—that's my last offer. -- OK. It's a(n) ___________.
The discovery of these tombs is _______ for scholars’ studying the history of the Tang Dynasty.
Life ____ be much happier if we ____ only be born at the age of 80 and gradually approach 18.
After floods had destroyed crops and houses, the farmers in the village were _____ food and shelter.
Never lose _____ heart. There is always a chance of _____ weak defeating _____ strong.
Everyone can borrow from this public library only two books _____ and they must be returned within a month.