Giúp mình với ----- Nội dung dịch tự động từ ảnh ----- 15. Rivers usually flow from the sea. 16. Do you know that man whose is smoking over there? 17. How many do you UNIT 4: OUR CU read a newspaper? - 3 times a week. 18. If it costs too many, I'll buy a small one. 19. I will gives it to them when they visit us. 20. As so as he finishes his work, he will go home. PART 3: TEST YOURSELF L. Choose the word whose underli