Câu hỏi trắc nghiệm (5 câu):
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Câu 1:
For seven years, researcher____ 300 people. One half took the bath or shower every day using soap
- A. studies
- B. study
- C. is studying
- D. is being studied
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- A. should
- B. might
- C. are able to
- D. are tend to
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- A. because
- B. so
- C. but
- D. however
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- A. to affect
- B. affecting
- C. be affected
- D. affected
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- A. between/and
- B. among/and
- C. not only/but also
- D. both/and