----- Nội dung dịch tự động từ ảnh ----- 1. Since 1965, the maple tree with red leaves A. has become the most well-known Canadian symbol. C. became B. become D. becoming 2. The air in Hanoi so we should use facemask. C. is polluted A. pollute 3. Many people B. polluting D. is polluting by the rescue worker yesterday. A. evacuate B. were evacuated C. are evacuated D. will evacuate 4. The victims of the wildfire to the hospital already. A. has been taken B. have been taken C. has taken D. have taken 5. A drought happens when there В. was 6. If you can speak English, you В. will a millionaire now, I no rain in a place for a long time. A. is C. has been D. had been able to go to Canada. A. will be C. were D. are 7. If I poor and have no money. travel around the world. But in fact, I am very A. were/ would B. am/ will C. were/ will D. am/ would 8. The Statue of Liberty over 12 million immigrants entering the USA through New York Harbor since 1900. A. welcomes B. is welcoming C. welcomed D. has welcomed