Trong cuộc Cách mạng công nghiệp (cuối thế kỉ XVIII - đầu thế kỉ XIX), phát minh kỉ thuật nào đã tạo ra bước chuyển căn bản trong nền sản xuất sản xuất tư bản chủ nghĩa

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EX2: Put the verbs into the correct tense (simple past or present perfect simple). 1. A: I (cycle / just) 50 km. 2. B: I (cycle) 100 km last week. 3. A: I (write) an essay yesterday. 4. B: I (write / already) two essays this term. 5. A: I (ring / just) my friend. 6. B: I (ring) my friend 10 minutes ago. 7. A: Two days ago, I (watch) a Madonna concert on TV. 8. B: I (see / already) Madonna live in concert. 9. A: I (spend) my summer holiday in Australia last year. 10. B: I (be / not) to Australia yet. EX3: Put the verbs into the correct tense (simple past or present perfect simple). 1. A: (you / be / ever) to London? 2. B: Yes, I (be) there three times. 3. A: When (be) the last time you (be) there? 4. B: Last summer. I (spend) two weeks in Brighton with my parents and we (go) to London one weekend. 5. (you / like) it? 6. Oh yes. We really (have) a great time in London. 7. Lucky you! I (be / never) to London. EX4: Put the verbs into the correct tense (simple past or present perfect simple). 1. A: (you / try / ever) haggis? 2. B: Oh, yes! 3. A: How often (you / eat) haggis yet? 4. B: Two times exactly. 5. A: When (you / eat / first) haggis? 6. B: That (be) in 2005. We (have) a Scottish festival in our town and they also (sell) traditional Scottish food. So I (buy) haggis. 7. A: (you / like) it? 8. B: It (be / not) too bad. And I (know / not) anything about haggis then. 9. A: When (you / find out) ? 10. B: When I (be) in Scotland in 2007. I (go) to a restaurant and (order) haggis. Afterwards, the waiter (tell) me about haggis: it's the heart, liver and lungs of a sheep, boiled in the animal's stomach. Well, I (eat / never) haggis again since then.