Be careful! The teacher(look) is looking at you

They (not meet) haven't met him since then

Farmers often (harvest) harvest their crops in August

They(leave) left Hanoi for HCM City yasterday

We(study) have studied almost every leson in this book so far

My wife and I (travel) travelled to Mexico by air last summer

I (have) had a little trouble with my car last week

What did you (do) do yesterday?

How long have you(learn) learnt English?

Tom (never be) has never been in Ha Noi

She has been (be) to America

John has seen (see) that film several times

They have lived (live) in this street for a long time

She hasn't spoken (not speak) to me since last week

We have studied (study) every lesson in the book so far

I had (have) three colds last year

This boy hasn't finished (not/finish) his homework yet

What were you(do) doing at 10am yesterday?

She(finish) has finished her homwork recently

The farmer (work) is working in the field now.

1,is looking 

2,haven't met 

3,harvest 

4,left 

5,have studied 

6,travelled 

7,had

8,did you do 

9,have you learnt 

10,has never been 

11,is

12,has seen 

13,have lived 

14,hasn't spoken 

15,have studied

16,had

17,hasn't finished 

18,were you doing 

19,has finished 

20,is working

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