Present Perfect (I have done) - Сегашно перфектно време (упражнения)

- have or has: 1,
- for and since: 1, 2, 3, 4, 5, 6, 7, 8,

- yet, just, already: 1, 2, 3, 4, 7,
- ever, never: 1, 2,
- recent events: 1, 2
- word order: 1, 2, 3,
- questions: 1, 2, 3, 4,
- negatives: 1, 2, 3, 4, 
- general:
  * Choose the right answer: 1, 2, 4, 5, 6, 7, 8, 
  * Write the correct form: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 




Sources: mrbrownslearningspace.com,  ego4u.com, nspeak.com, montsemorales.com, adelescorner.org, www.englisch-hilfen.de, suz.digitaleschulebayern.de, focus.olsztyn.pl, learnenglish.de, englishbee.net, esl.fis.edu, oudwww.bonhoeffer.nl, first-english.org, esl-classroom.com