第18题: [单项选择]Look, the ______ up at the lake ______ just breathtaking. A. sceneries; are B. sceneries; were C. scenery; is D. scenery; was 参考答案:C 答案解析:根据题意,这里scenery为不可数名词,与之对应的谓语部分be动词应该用单数,而且look表明其时态为现在时,是正在发生的动作。
第19题: [单项选择]There was such a long line at the exhibition ______ we had to wait for about half an hour. A. as B. that C. so D. hence 参考答案:B 答案解析:句型"such...that"表示“如此……以至于”,that引导出结果状语从句。例如:Justice is such a fine thing that we cannot pay too dear
第34题: [单项选择]在Visual FoxPro中,可对字段设置默认值的表 A. 必须是数据库表 B. 必须是自由表 C. 自由表或数据库表 D. 不能设置字段的默认值 参考答案:A 答案解析:[解析] 在Visual FoxPro中可对数据表进行默认值设置的字段仅限于数据库表,自由表无此功能。故选项A为正确答案。