第5题: [单项选择]She said that she ______ much progress since she came here. A. makes B. made C. have made D. had made 参考答案:D 答案解析:时态用法。间接引语(或宾语从句)的时态应与主句的时态一致。该句中said是过去时,所以出at引导的宾语从句中也要用过去的某一种时态,而从句中since引导的时间状语从句表明其应为完成时态,故应用过去完
第6题: [单项选择]体内氨的储存和运输方式是() A. 谷氨酸 B. 谷胱甘肽 C. 天冬氨酸 D. 谷氨酰胺 E. 半胱氨酸 参考答案:D