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13. I suggest bringing your sister to the party.
14. Neither my brother nor I am not good at driving.
15. He was advised to stop smoking.
16. The heavy rain prevented them from finishing their game of badminton.
17. I could hardly understand what you said.
18. It took the students two hours to correct their exercises.
19. My father suggested checking all the doors before going to bed.
20. Ho Chi Minh city is the largest city in Vietnam.
