试题题干
WORD FORMATION
Complete each of the following sentences with the proper form of the word in brackets.
He built up a successful business but it was all done at theof his health.(expensive)
参考答案
试题解析
本题考查常见形容词的名词形式。
空缺处前是介词at + 冠词the,故空缺处应填名词。expensive是形容词意为“昂贵的、代价高的”,其名词形式是expense意为“费用、代价”,符合题意。at the expense of sth是固定用法意为“以某物为代价”,故此处需使用单数形式。
句意:他创立了一家成功的企业,但这一切都是以牺牲他的健康为代价的。