第2题: [单项选择]--What's the matter Why ______ --The signal is against us. A. the train stopping B. does the train stop C. is the train stopping D. did the train stop 参考答案:C 答案解析:用排除法。A、B、D都不对,D是过去时,而前面是现在时,所以后面为将来时态更合适。
第9题: [单项选择]After long time of hesitation, the woman gave free vent to her pent-up emotion. A. intense B. written C. strong D. confined 参考答案:D 答案解析:[解析] 形容词辨析 A.intense强烈的,剧烈的,热切的;D.confined被限制的,狭窄的;而pent-up表示:幽闭的,被压抑的;所以答案为D。