Having proper motivation is not _______ —it is another key to success.
176. Three times the accused was brought to court for trail, he was sentenced half a year’s imprisonment by the _____.
175. I preferred to go there by plane, but I hadn't enough money to pay for the _______.
174. The teacher asked his students to help the old lady to do some housework and they made a good _____ of 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 _____.