----- Nội dung dịch tự động từ ảnh ----- Exercise 3: Correct the mistake in the following sentences. 1. Why are you so late? I am waiting here for you for more than one hour. A B с D 2. Phuc never go to bed before he has finished his homework. A B с D 3. I have learnt English for I was ten years old. A B C D 4. Yesterday evening while I was watching TV, Mai pays me a visit. A B с D 5. We went out for a walk after we had our dinner. A B с D 6. As soon as the next lecture will end, let's leave. A B с D 7. Mr. Ba had a daughter who were born in 1950, but died a few years later. A B с D