A. because
A. because: vì
B. so: vì thế
C. or: hoặc
D. whereas: trong khi đó
Thông tin: Adults can easily survive on seven to eight hours' sleep a night, whereas teenagers require nine or ten hours.
Tạm dịch: Người lớn có thể dễ dàng sống sót sau bảy đến tám giờ ngủ mỗi đêm, trong khi đó thanh thiếu niên cần chín hoặc mười giờ.
Choose D.
Mark the letter A, B, C or D on your answer sheet to indicate the word with the main stress different from that of the other three words in each question.
This (22) ______ serious questions about whether lack of sleep is affecting children's ability to concentrate at school.
It can be inferred from paragraph 2 that advertisers must ___________
We all wish to create a friendly and supportive environment ________ to learning
Mark the letter A, B, C or D on your answer sheet to indicate the word with the main stress different from that of the other three words in each question.
Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part is pronouned differently from the other three in each question.
If you want to get a good result in every work, you should have a constancy.
Lady Liberty has long been a symbol of free and hope to people all over the world, but have ever wondererd where she came from?
The word "this" in bold type in paragraph 1 refers to ___________
According to a new report, today's generation of children are in danger of getting so (20) _______ sleep that they are putting their mental and physical health at risk.
The phrase "in a new light" in bold type in paragraph 5 is closest in meaning to ____________