Choose since or for to fill in the blanks. 06 Mar, 2020 By Olivo 0 Comments 0 Adverbs Exercises, Grammar Exercises, Present Perfect Exercises 1. They have been friends ___ 25 years. for since 2. She has been living in Boulder ___ 10 months. for since 3. We have been dating ___ 2019. for since 4. He has been feeling sick ___ he ate lunch. for since 5. We have been going to Florida every summer ___ we got married. for since 6. I have been reading ___ 45 minutes. for since 7. We have been working together ___ the company opened. for since 8. I have been helping her ___ last week. for since 9. It has been raining ___ this morning. for since 10. He has been waiting for us ___ about half and hour. for since Loading … Please follow and like us: TAGS : English grammarfor and sincefor vs sincegrammar exerciseslearn Englishpractice Englishpresent perfect Share