`1.`
C1: When did you last ride a bike?
C2: When was the last time you rode a bike?
C3: How long has it been since you last rode a bike?
`2. `
C1: When did he last write to you?
C2: When was the last time he wrote to you?
C3: How long has it been since he last wrote to you?
`3.`
C1: How long is it since he talked to you?
C2: How long has it been since he last talked to you?
C3: When was the last time he talked to you?
`4.`
C1: How long is it since you telephoned him?
C2: How long has it been since you telephoned him?
C3: When was the last time you telephoned with him?
`5.`
C1: How long have you had it?
C2: When did you start having it?
C3: How long have you been having it?
`6.`
C1: How long ago did you learn Spanish? `-` How long ago + thì quá khứ đơn
C2: How long have you been studying Spanish?
C3: When did you start learning Spanish?
`7.`
C1: When did you last use the car?
C2: When was the last time you used the car?
C3: How long has it been since you last drove?
`8.`
C1: How long have you designed this skirt?
C2: When did you start designing this skirt?
C3: How long have you been designing this skirt?