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Вопрос:
8. How long have you been working on this problem?
Ответ:
8. How long have you been working on this problem?
* **Объяснение:** Это вопрос в Present Perfect Continuous (have you been working), который показывает длительное действие, начавшееся в прошлом и продолжающееся до настоящего момента, и задает вопрос о его длительности.
Похожие
- Раскройте скобки, чтобы получить Present Simple, Present Continuous, Present Perfect Continuous или Present Perfect. 1. Is Andy here? - I don't know, I have not seen him today.
- 2. Where are you going? – To the library.
- 3. Would you like to borrow this magazine? - No, thanks. I have read it before.
- 4. Betty's bus arrives at 5 o'clock. I must go and meet her at the bus station.
- 5. Have you seen my record book? I've been looking for it all the morning.
- 6. Mike has been talking to his friend for an hour already.
- 7. More and more forests are disappearing because of fires nowadays.
- 8. How long have you been working on this problem?
- 9. The first lesson doesn't finish at 9.45.
- 10. They are playing football tonight.
