Present Perfect образуется при вс глагола have/has + V3 (глагол в третьей форме). В тексте несколько предложений в данном времени: All the students have brought in a few items from home that are still in good condition. We have decided to do simple things on Buy Nothing Day. We've walked to school instead of taking the bus and we've asked our parents not to go to the supermarket.
Present Perfect Continuous образуется при В тексте одно предложение в данном времени. We have been working hard on it all week.
1. A few centuries ago people didn’t travel in space. - Past Simple 2. It’s raining heavily now. - 6. Present Continuous 3. Tomorrow at this time they’ll be broadcasting this programme again. - 4. Future Continuous 4. He had finished his essay by 7 p. m. yesterday. - 1. Past Perfect 5. Nobody will read this book. - 5. Future Simple 6. She was cleaning the park with other volunteers all day long. - Past Continuous 7. Tornadoes usually occur in the spring. - 2. Present Simple
All the students have brought in a few items from home that are still in good condition.
We have decided to do simple things on Buy Nothing Day.
We've walked to school instead of taking the bus and we've asked our parents not to go to the supermarket.
Present Perfect Continuous образуется при В тексте одно предложение в данном времени.
We have been working hard on it all week.
2. It’s raining heavily now. - 6. Present Continuous
3. Tomorrow at this time they’ll be broadcasting this programme again. - 4. Future Continuous
4. He had finished his essay by 7 p. m. yesterday. - 1. Past Perfect
5. Nobody will read this book. - 5. Future Simple
6. She was cleaning the park with other volunteers all day long. - Past Continuous
7. Tornadoes usually occur in the spring. - 2. Present Simple
8. Present Perfect - похоже лишнее