根据语境，选择下框中的单词，替换句中划线部分，使之意思一致。
提醒：请将所选答案对应的字母序号，填涂到答题卡相应位置。

A. typical       B. stream       C. benefit       D. reaction       E. striking F. represent       G. origin       H. approach       I. previous       J. generous

【小题1】________ He announced to have developed a new method for growing tomatoes.
【小题2】________ The coach is a former professional baseball player.
【小题3】________ He responded to their comments with characteristic good humor.
【小题4】________ Someone who is willing to give freely.
【小题5】________ The birth of human language remain a matter of considerable debate.
【小题6】________ Each color on the chart is a symbol of a different department.
【小题7】________ They profit greatly from his investments.
【小题8】________ Competing in the Olympics is a remarkable achievement.
【小题9】________ When I told him my plan, I wasn’t expecting such an enthusiastic response.
【小题10】________ She lost control and the tears began to flow.