(A) ________________________, but research shows that students who sleep more get better grades. (B) It’s no secret that college students tend to skimp on sleep to squeeze the most out of 24 hours. (C) But this generation is different, and researchers are increasingly focusing on college students because they are one of the most sleep-deprived populations. (D) College students go to bed one to two hours later and sleep less per night on average compared to previous generations. (E) As a result, 75% of undergraduates do not sleep enough to feel rested on five or more days per week, and 19% reported that sleep difficulties had an impact on academic performance in the past year. (F) Research shows that napping 10-45 minutes can increase performance. (G) The amount of sleep that a college student gets is one of the strongest predictors of academic success. (H) Therefore, sleep plays a key role in helping students fix and consolidate memories, plus prevent decay of memories. (I) _____________________________.
ข้อ 56) Which one best completes the topic sentence (A)?
1. Most students get a full night’s sleep every night
2. Students have adjusted their bedtime for studies
3. It is important for students to study extra hard
4. Many students give up sleep to get good grades
1. to which
2. with which
3. that
4. with whom