1. weren't | 2. wasn't | 3. was | 4. were |
1. They were old. They weren't young. (Họ đã già. Họ không còn trẻ.)
2. He was sad. He wasn’t happy. (Anh ấy buồn. Anh ấy không vui.)
3. I wasn't a monkey in the play. I was a kangaroo. (Tôi không phải là một con khỉ trong vở kịch. Tôi là một con chuột túi.)
4. There weren't cakes, but there were balloons. (Không có bánh kem nhưng có bóng bay.)