【評論主題】【題組】48. In the last fourteen years, the number of students learning Mandarin in the U.S. ___________

【評論內容】There are ten times as many students now enrolled in Mandarin courses as there were in the year 2000. ten times就等於1000 percenti

【評論主題】【題組】42. (A) to play (B) play (C) played (D) playing

【評論內容】have trouble +Ving ,Ving為動名詞