8th grade. Unit 1. Lesson 7. Present perfect simple and present perfect continuous

1. I[blank_start]'ve been cycling[blank_end] and my legs are really tired now. 2. I'm sorry I'm late, [blank_start]have you been waiting[blank_end] for a long time? 3. How long [blank_start]have you known[blank_end] Peter? 4. Somebody [blank_start]has eaten[blank_end] my cookies. There are none left. 5. How many books [blank_start]has she written[blank_end]? 6. She must be tired. She [blank_start]has been writing[blank_end] all afternoon. 7. I think I[blank_start]'ve liked[blank_end] chocolate since I was born. 8. They [blank_start]have been travelling[blank_end] for months, and they [blank_start]have visited[blank_end] three countries so far. 9. Bruce [blank_start]has been playing[blank_end] tennis since he was a child. He [blank_start]has won[blank_end] many trophies. 10. He [blank_start]has been fishing[blank_end] since he was a little boy.