第5题: [单项选择]The store had to ______ a number of clerks because sales were down. A. lay out B. lay off C. lay aside D. lay down 参考答案:B 答案解析:[考点] 词语搭配。 [解析] 本题测试动词词组辨异。句意实际上暗示了选择B项。A．布置，安装，展开；B．解雇，停止工作；C．放在一边，留待后用；D．放下，规定。
第7题: [单项选择]All the references she has obtained for her doctoral dissertation ______ about twenty items. A. make up for B. add up to C. come up with D. put up with 参考答案:B 答案解析:[解析] 本句空格处意为“总计约有20项”。add up to意为总计达，如；This movie adds up to a lot of tears．(这部电影赚了不少眼泪。)其他三项“make u
