giúp mình với Huhu Sắp hết h rồi

15.The bus. before I reached the bus stop. A. had arrived B. has arrived C. was arriving D. will arrive 16.I saw a good play yesterday. A. nice C. much D. happily B. pretty 17.A.The girl seemed . .and anxious about something . C. nervous 18. A policeman catches is a person who ... C. l ...