Hoàn thành câu sử dụng những từ cho dưới đây. Sử dụng a/an khi cần thiết.
accident, biscuit, blood, coat, decision, electricity, key, letter, moment, music, question, sugar
It wasnt your fault. It was..
Listen! can you hear..?
I couldnt get into the house because I didnt have ..
Its very warm today. Why are you wearing..?
