Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
5. Mr.Cuong hopes to travel around _____ world next summer.
6. If you watch this film, you ________ about the cultures of Southeast Asian countries.
7. Paul noticed a job advertisement while he ________ along the street.
8. Solar energy is not widely used __________ it is friendly to the environment.
9. The sign warns people the dangers of swimming in this river.
10. Could you _____ me a hand with the washing-up, Mai?
11. Once ________ in large quantities, these products will be more affordably priced.
12. Jane would never forget _________ first prize in such a prestigious competition.
13. You should turn off the lights before going out to save ____________ .
14. ______________school fees may discourage many students from attending university.
15. Drinking too much alcohol is said to ________ harm to our health.
16. At the end of the training course, each participant was presented with a ________ of completion.
17. My parents don’t put pressure on me to make _______ about what to study at university.
18. Event organisers should plan everything carefully so as to leave nothing to ________ .
