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17 tháng 2 2022

11. The train to Ha Noi ________ at 7 a.m tomorrow.
A. leaves B. leaving C. to leave D. left
12. Environmental pollution has ________ lots of health problems.
A. caused B. got C. made D. led
13. The heavy rain has caused ________ in many parts of the country.
A. drought B. storms C. forest fire D. floods
14. The road in front of my office is always ________ when it rains heavily.
A. to flood B. flooded C. flood D. flooding
15. Singapore is famous for its ___?_____ and green trees.