Khoanh tròn đáp án đúng cho mỗi câu sau. 1. Andrew has just started evening classes. He ................. German. A. are learning B. is learning C. am learning D. learning 2. The workers ................................a new house right now. A. are building B. am building C. is building D. build 3. Tom ............................. two poems at the moment? A. are writing B. are writeing C.is writeing D. is writing 4. The chief engineer .................................... all the workers of the plant now. A. is instructing B. are instructing C. instructs D. instruct 5. He .......................... his pictures at the moment. A. isn’t paint B. isn’t painting C. aren’t painting D. don’t painting 6. We ...............................the herbs in the garden at present. A. don’t plant B. doesn’t plant C. isn’t planting D. aren’t planting 7. They ........................ the artificial flowers of silk now? A. are.......... makeing B. are......... making C. is........... making D. is ........... making 8. Your father ...............................your motorbike at the moment. A. is repairing B. are repairing C. don’t repair D. doesn’t repair 9. Look! The man ......................... the children to the cinema. A. is takeing B. are taking C. is taking D. are takeing 10. Listen! The teacher.......................a new lesson to us. A. is explaining B. are explaining C. explain D. explains 11. They ………… …….. tomorrow. A. are coming B. is coming C. coming D. comes