----- Nội dung dịch tự động từ ảnh ----- Question 38: Nam must chew food carefully. Otherwise, he will have a stomachache. (If) Question 39: My teacher spoke very fast. We can't understand what he was speaking. (too) Question 40: Son Doong Cave is recognised as the largest cave in the world. It is located in Quang Binh Province. (which)
