Open the brackets using the Present Perfect or the Present Perfect Continuous. 1. They … all young trees in the park. (plant) The job is done.
2. They … young trees in the park since morning. (plant)
3. The children … the fir-tree (decorate). You can see it now.
4. Our parents … the fir-tree all evening (decorate). They are still in the drawing room.
5. He … tape-recorder (repair) and has just begun to use it.
6. He … tape-recorder (repair) himself since morning and hopes to finish it soon. 7. Mary is still in the kitchen. She … it all morning. (clean)
8. Mary … the kitchen (clean) and now it looks tidy and nice.
9. I … a lot of material for my paper (collect), so I am ready to write it.
10. I … some material for my paper since November (collect) and I’m only half-way through.