... (talk)_____________ to his pen pal on the phone at themoment.16. They (not contact)_______________ to each other for a long time.17. Nothing (be)______________ done since I moved here.18. I used ... go38. This movie is not interesting. How about______________ to the concert? A. to go B. going C. go D. went39. You should_______________ more books on UFO if you want to know about life on other ... …)- FOR: chỉ khoảng thời gian (3 months, a long time, ages, …) b. S + has/have +V3/ed…… since + S + V2/ed…. Ex: We have known each other since we worked in this factory. c. Các trạng từ: never,...