1.Through years of practice,the old man has a a lot of knowledge and experience.
【答案】 acquired
2.As a writer,you need to do a lot of t before you can work out a good novel.
【答案】 thinking
3.—What is your brother’s r in the army?
—Captain.
【答案】 rank
4.This new computer is well w of the price.
【答案】 worthy
