1. How often is it since you last saw Tom ?

=> When ....did you see Tom.........

2. How long have you learnt French ?

=> How long ago ....did you learn French........

3. When did you start to listen to classical music ?

=> How long .......have you listened to classical music...............

4. It's a pity, I can't play the piano

=> I wish ......I could play the piano

viết lại câu :

1. How often is it since you last saw Tom ?

=> When .............did you last saw tom ?.......................................

2. How long have you learnt French ?

=> How long ago .....did you learn french ?................................

3. When did you start to listen to classical music ?

=> How long .................have you listened to classical music ?...................................

4. It's a pity, I can't play the piano

=> I wish .....i could play the piano.............................................

viết lại câu :

1. How often is it since you last saw Tom ?

=> When did you see Tom ?

2. How long have you learnt French ?

=> How long ago did you start learn French ?

3. When did you start to listen to classical music ?

=> How long have you listened to classical music ?

4. It's a pity, I can't play the piano

=> I wish I could play the piano

-----------------------Chúc bạn học tốt-------------------------

1. How long is it since you saw Tom

when did you see tom?

5. How long have you learnt French?

How long ago did you learn french?

6. My father started to give up smoking last year.

My father...hasn't smoked since last year

7. They have worked in that factory since 2001.

They started.working in that factory in 2001

8.I haven't seen her for a long time.

I didn't saw her a long time ago

1. How long is it since you saw Tom

When did you last see Tom?

5. How long have you learnt French?

How long ago did you start to learn French?

6. My father started to give up smoking last year.

My father has given up smoking since last year.

7. They have worked in that factory since 2001.

They started to work in that factory in 2001

8.I haven't seen her for a long time.

I didn't see her a long time ago.

1. When did you see tom?

5. How long ago did you learn french?

6. My father hasn't smoked since last year

7. They started working in that factory in 2001

8. I didn't saw her a long time ago

1. john smokes a lot a year ago, but now he doesn’t smoke any more .

→ john used to smoke a lot

2. it’s time for you to go to school .

→ it’s time you went to shcool

3. how long is it since you saw tom?

→ when Did you last see Tom

4. please keep silent in the classroom.

→ i’d rather you kept silent in the classroom

5. he can’t pass the examination.

→ he wishes he could pass the examination

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? 

2. It's time for you to go to school
-> It's time you....went to school......
3. How long is it since you saw Tom?
-> When.....did you see Tom?...
4. Please keep silent in the classroom.
-> I'd rather you........kept silent in the classroom........
7. I don't like you to come to class late.
-> I'd rather you..didn't come to class late. .........

5. I wish we would go away more often.

6. When did you last see Tom?

7. This question isn't answered .

1. The teacher asked me what my name was

2. Because the house was cheap, we decided to buy it

3. This is the women who can help you with housework

4. When did you see Tom?

5. Your brother uses internet every day, doesn't he?

The teacher asked me what is my name

How long have you last saw Mary?