英文Toeic 考試的文法問題 請英文高手幫幫忙

Question

和之前刊登那邊接續的問題 因為問題太多只好分兩次問
11. The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers at country fairs.
ans: periods of aviation 錯
12.The Americananarchist Emmainfused her spirited lectures, publishes, and demonstrations with a passionate belif in the freedom of the individual.
ans: publishes 錯
13.Being the biggest expanse of brackish water in the world, the Balitic Sea id of special interesting to scientists. ans: interesting錯
14.While studying the chemistry of human body,Dr.RosalynYalow won a Nobel Prize for the research she conducted on the role of hormones. ans: of human body錯
這禮拜就要考TOEIC , 希望這些文法解釋能清晰些,謝謝~ 感激不盡! (PS. 如果問題太簡單請見諒)

Answer 1

11. The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers at country fairs.
ans: periods of aviation 錯
答案是：period of aviation。和後面的be動詞was才配合。
12.The Americananarchist Emmainfused her spirited lectures, publishes, and demonstrations with a passionate belif in the freedom of the individual.
ans: publishes 錯
答案是：publications。publish是動詞，要用名詞publications，指出版的刊物。
13.Being the biggest expanse of brackish water in the world, the Balitic Sea id of special interesting to scientists. ans: interesting錯
答案是：interest。interesting是動名詞，在這裡要用名詞，of special interest是片語，對科學家會使他們感到特別有興趣。
14.While studying the chemistry of human body,Dr.RosalynYalow won a Nobel Prize for the research she conducted on the role of hormones. ans: of human body錯
答案是：in human body。因為她做的是荷爾蒙的研究，所以研究的的是人體內的化學作用要用chemistry in human body。