Bài tập viết lại câu thì hiện tại hoàn thành và quá khứ đơn 20. She hasn’t written to me for years. It’s years ______________________________________________ 21. Robert and Catherine have been married for ten ỵears. It’s ten years ______________________________________________ 22. It’s two weeks since they deaned their room. They ______________________________________________ 23. It’s over six months since John had his hair cut. John ______________________________________________ 24. How long is it since you rode a bicyde? When ______________________________________________ 25. How long is it since he wrote to ỵou? When ______________________________________________ 26. When did he last talk to you? How long ______________________________________________