Раскройте скобки, вставив глаголы в Present
Perfect Continuous или Present Continuous.
1. What ...you (talk) about?
2. We (talk) about this tense for two hours.
3. They (have tea) now.
4. They (have tea) since 4 o'clock.
5. What... you (do)?... I (fix) my car.
6. I (fix) my car for two hours.