中等ENGL-WRIARG-011
Which sentence can work as a topic sentence for a paragraph arguing for later school start times?
A. Many schools open at 8 a.m.
B. A later start would give teenagers the sleep they need to concentrate.✓ 答案
C. I walked to school yesterday.
D. Sleep is a word with five letters.
解說
主題句要有可辯護的主張。later start 連到 concentrate，後面可以加原因同例子。開門時間、個人走路、字母數目都係事實或空話，帶不起一段論證。