Làm giúp em với ạ !
Type the correct form of the verb in parentheses to complete each sentence.
1. I (live) in this city for four years now.
2. When I ________________________ (be) young, I ________________________ (study) dinosaur fossils.
3. I'm really upset. I ________________________ (lose) my wallet this morning.
4. It's the end of the summer vacation, and I still ________________________ (not do) my homework.
5. Researchers________________________ (identify) many new plant species in the last five years.
For or since ?
1. John is coming home tomorrow. He's been away for years.
2. I haven't eaten in this restaurant since my birthday party.
3. You're very quiet. You haven't said anything since you arrived.
4. I've wanted to join this team _______________ a long time.
5. I haven't written a letter to anyone _______________ I got a smartphone.