Các bạn giúp mình giải bài này với ----- Nội dung dịch tự động từ ảnh ----- 1 I've sent all the letters this morning. I sent all the letters this- morning. 2 3 She learnt to speak seven languages. 4 5 6 7 8 She has learnt to speak seven languages. He worked for the company for three years. He has worked for the company for three years. He has sold a lot of cars today. He sold a lot of cars today. -a (It's four o'clock in the afternoon.) -b (It's eleven o'clock in the morning.) a (She is not still alive.) (She is still alive.) b a (He still works there.) (He doesn't work there now.) b a b (It's 10 pm and he is not working now.) (It's 4 pm and he is still working.)