Khoanh tròn vào đáp án đúng nhất: 1. We …………..students. A. am B. were C. are D. is 2. …………. this your case? A. is B. are C. am D. was 3. There isn’t ………….milk in the bottle. A. some B. few C. any D. little 4. I buy …………..new car. A. an B. the C. a D. that 5. Is ……….. a balcony?