We have never eaten this kind of food before

      S + HTHT (phủ định) + before

<!--[if gte vml 1]> <!--[endif]-->     This/ It’s + the first time + S + HTHT (khẳng định)

1.   We have never eaten this kind of food before.

ð It’s the _______________________________________________________________________       

2.   This is the fìrst time I have seen this fìlm.

ð I have never___________________________________________________________________

3.   This is the first time he went abroad.

ð He hasn’t _____________________________________________________________________

4.   This is the first time I had such a delicious meal .

ð  I haven’t_____________________________________________________________________

5.      This is the first time I've been to a night club

ð  I haven’t _____________________________________________________________________

6.      No one has challenged his authority before.

ð  This is the first time ____________________________________________________________

7.      I have never been to the ballet before.

ð  It is _________________________________________________________________________

8.      I 've never met such a famous person before.

ð  It is the first time ______________________________________________________________

9.      She hasn't seen that boy here before.

ð  It is the first __________________________________________________________________

10.  I have never seen a dirtier-looking dog.

ð  This is ______________________________________________________________________

<!--[if gte vml 1]><!--[endif]-->S + began / started + V-ing + thời gian + ago

1.   Samuel started keeping a diary in 1997.

ð Samuel has ___________________________________________________________________

2.   We started learning English five years ago.

ð We have _____________________________________________________________________

3.   I began living in Ho Chi Minh City when I was 8.

ð I have _______________________________________________________________________

4.   She has taught the children in this remote village for five months.

ð She started ___________________________________________________________________

5.   She started driving 1 month ago.

ð She has ______________________________________________________________________

6.   We started looking for a flat 2 months ago and we are still looking.

ð We have _____________________________________________________________________

7.   I have learned English for four years.

ð We started ___________________________________________________________________

8.   Ly’s father started to stop smoking last year.

ð Ly’s father ___________________________________________________________________

   -  S + HTHT (phủ định) + since / for + …..
   - S + last + QKĐ (khẳng định) …+ when + mệnh đề
   - The last time + S + QKĐ (khẳng định) + was + thời gian

1.   He has written to me since April.

ð The last time ___________________________________________________________________

2.   She hasn’t had a swim for five years.

ð She last _______________________________________________________________________

3.   They last talked to each other two months ago.

ð They haven’t ___________________________________________________________________

4.   The last time she saw her elder sister was in 1999.

ð She hasn’t _____________________________________________________________________

5.   She hasn’t written to me for years.

ð It’s years______________________________________________________________________

6.    I last had my hair cut when I left her.

ð  I haven’t _____________________________________________________________________

7.    The last time she met me was 5 months ago.

ð  She hasn’t_____________________________________________________________________

8.    I haven't been to a concert for over a year.

ð The last time ___________________________________________________________________

9.    The last time I really enjoyed myself was your birthday party.

ð I haven’t ______________________________________________________________________