【評論主題】46-50Opera singers and dry air don't get along. In fact, the best professional singers requireh

【評論內容】題目沒有選項（E), 為何答案是(E)?

【評論主題】31. The professor told us that in order ( A)to remember details, ( B)it is important to( C)take note

【評論內容】請問為什麼答案是B?