1. How long is it since you rode a bicycle?
=> When .................................................................................?
2. How long is it since he wrote to me?
=> When .................................................................................?
3. When did he last talk to you?
=> How long ..........................................................................?
4. When did you last telephone him?
=> How long ....................................................................?
Yêu cầu của bài là viết lại câu giữa quá khứ đơn và hiện tại hoàn thành
Lưu ý: Đây là bồi dưỡng
1, when did you last rode bicycle
2, when did he last write to me
3, how long is it since he talked to you
4, how long is it since you telephoned him