1,The director signed the letter

--->The letter

2,An artist wrote that interesting article

--->That interesting article

3,They returned those books to the libraray

--->Those books 

4,They didn't tell people the plan

--->People

5,The company built the new factory

--->The new factory

6,She didn't show the design to anyone

--->The design

7,He bought a new house last year

--->A new house

8,We clean the classroom every day

--->The classroom

--->The 

1,Mary has leant French for 6 year

-->It's 

2,My uncle has been a worker in that factory for 10 year

-->My uncle started

3,How long have your family read Tuoi Tre Newspaper

-->When did your

4,My old friend stared working on that farm in 2005

-->Since 2005,

5,Jane's grandma hasn't planted treess in the garden for 5 months

-->Jane's grandma stopped

6,We haven't seen Mary since we left the university

-->We last

7,She hasn't gone out with him for 5 months

-->The last time

1,It's two years since we last saw Mr.Jones

-->We haven't

2,this is the first time I have visited the USA

--->I haven't

3,We haven't seen time I have visited the USA

--->This is the first

4,She moved to LonDon 20 years ago

-->she has 

5,I stopped writing to him a week ago

-->I haven't

6,When did your father buy that car

-->How long

7,The last time I saw John was when he was leaving for Edinburgh

--->I haven't

8 ,When did he start teching Physical Education in this school

-->How long

9 John's career as a televison presenter began five years ago

-->I haven't

10,I have never seen such a bad film as that one in the cinema

--->This is the

11,The Last time I went swimming was when I was in Spain

-->I haven't

12,I have learnt English for 10 years now

--->I began

13 ,The Pikes haven't visited Paris for 2 years

--->The last time 

1,She usually got up late when she was a child

--->She used 

2,He doesn't go to school late any more

-->He used

3,I went fishing with my brother when I was a child

--->I used

4,Minh usually jogged when he was yoing

---->He used

5,He often played the piano at night

--->He used

6,When I was a child,I lived in LonDon

--->I used

7,My brother often played video games when my mother went out

--->My brother

8,There isn't a beautiful building here now

-->There used

9,There was a banyan tree here a few years ago ,but now there isn't

--->There used

10,My father isn't busy with his work any more

--->My father used