How long is it since you used the pen ?
=> When .................................................... ?
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How long is it since you used the pen?
⇒ When did you start to use the pen ?
How long is it since you used the pen ?
=> When ...did you start using the pen.... ?
![](https://rs.olm.vn/images/avt/0.png?1311)
How long is it since you used the pen?
- When did you use the pen?
How long is it since you used the pen?
- When ………did you use the pen ?……………………………………………………………………
![](https://rs.olm.vn/images/avt/0.png?1311)
IV. How long +is it since+ S +Ved/ V2……?= When + did+ S + V……?
1. How long is it since you used the car?
=> When did you use the car ?
2. How long is it since they moved here?
=>When did they move here ?
3. How long is it since he bought that computer?
⇒When did he buy that computer ?
4. How long is it since she heard that news?
⇒When did she hear that news?
5. How long is it since they made these cakes?
⇒When did they make these cakes ?
6. When did he last saw this film?
How long is it since he last saw this film ?
7. When did his father watch this news?
How long is it since his father watched this news ?
8. When did you first see her?
=>How long is it since you saw her first ?
9. When did you first know her?
=>How long is it since you knew her first ?
10. When did you start working in that factory?
=>How long is it since you started working in that factory?
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6. It's three years since I last spoke to her.
==> I haven't spoke to her for three years.
7. Tam doesn't type as fast as she use to.
==> Tam used to type fast but now she doesn't.
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Keeping the environment clean is very important.
-->It's ........very important to keep the environment clean........
They will show the time machine to the public when they finish it.
-->The time machine .......will be showed to the public when they finish it.......
How long is it since you used the car ?
-->When .......did you use the car.......?
We started living here fifteen years ago.
--> We have ......lived here for fifteen years......
1.It's very important to keep the enviroment clean.
2. The time machine will be shown to the public when it is finished.
3. When did you last use the car?
4. We have lived here for fifteen years.
![](https://rs.olm.vn/images/avt/0.png?1311)
2. We have lived here for fifteen years.
1. When did you use the car?
I.Rewrite each sentence so that the meaning stays the same:
1.How long is it since you used the car?
=>When..........DID YOU USE THE CAR ..........................................?
2.We started living here fifteen years ago.
=>We have......LIVED HERE FOR FIFTEEN YEARS...........................................
![](https://rs.olm.vn/images/avt/0.png?1311)
John had his hair cut 6 months ago
When did you last ride a bicycle ?
When did he last write to you ?
How long is it since he talked to you ?
How hong is it since you telephoned him?
It's the first time we've ever eaten this kind of food
I've never seen this film before
How long is it since you used the pen ?
=> When ..........did you start to use the pen.......................................... ?
How long is it since you used the pen ?
=> When .......was the last time (that) you used the pen.......................................... ?