B Answer the questions in a. Use the present perfect + for or since. I've been married for 20 years. 11 I was a child. 2 She three years. 31 a long time. 4 He 1990. 51 May. 6 It 1973. 7 We about two years. 8 He 2008. p.71

Sure! Here are the completed sentences using the present perfect tense with "for" or "since": 1. I’ve been married **for** 20 years. 2. She has lived in that house **for** three years. 3. I have known him **for** a long time. 4. He has worked at the company **since** 1990. 5. She has played the piano **since** May. 6. It has snowed **since** 1973. 7. We have been friends **for** about two years. 8. He has traveled to Europe **since** 2008. If you need any more help, feel free to ask!