After having failed many times, the young man refused to try it _______.
173. One of my Japanese friends sent me two _____, but I didn’t accept them.
172. Since the disaster of September 11, American economy has got into a jam. The underlined part probably means _____.
171. You should put down your jacket, otherwise both of you will have a quarrel. That will make things worse. The underlined part probably means _____.
170. So long as you work hard enough, a(an) _____ rod can be ground into a needle. (prov.)
169. The people performing all play different _______ and three of them sing, too.