Exercise 1: Cho dạng đúng của các từ trong ngoặc ở những câu dưới đây. 1. Detroit is renowned for the _____________ of car. (produce) 2. If you make a good ________________ at the interview, you will get the job. (impress) 3. The _________________ looked dark and there were hardly any other guests. (enter) 4. My history teacher has a vast ________________ of past events. (know) 5. You are never too old to go to college and gain some _______________. ( qualify) 6. My greatest ________________ was graduating from university. (achieve) 7. The weatherman said there is a strong _______________ of rain today. (possible) 8. Despite her severe _________________, she fulfilled her goals in life. (disable) 9. I am really into eating dairy______________. (produce) 10. Due to the pilot's _____________, the copilot managed to land safely. (guide)

cho ∆ABC vuông tại C có sin A=0.8 tính tỉ số lượng góc B