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.