1.1 is eating(now)

2 are riding(look)

3 isn't reading(now)

4 will...do(tonight)

5 doesn't work(today)

6 isn't listening(at the moment)

7 is sitting(now)

8 do...study(today)

9 makes(always)

10 is(hiện tại đơn)

11 wears(today)

12 gets(hiện tại đơn)

13 are/are playing(now)

14 is coming(look)

15 borrows/gives(always/never)

16 was doing/was reading(while)

17 is singing(listen)

18 works(hiện tại đơn)

19 are...doing/am writing(now)

20 play(hiện tại đơn)

21 are...studying/am listening(now)

22 is talking(now)

23 watches(hiện tại đơn)

24 walk(hiện tại đơn)

25 don't go(hiện tại đơn)

26 does...read(hiện tại đơn)

27 is repairing(now)

5.hiện tại hoàn thành(present perfect)

1 has been

2 has lived

3 haven't written

4 have seen

5 have known

6 has worked

7 have played

8 have...seen

9 has...taught

10 haven't seen

2.1 I have played the guitar since I was 16

2 they have never visited to the greek island before

3 We have already been to a rock concert. 

4 she has just arrived

5 he has lived here for two years

6 she still hasn't phoned her mother

7 I have written this letter for a week

8 it has been snowing since this morning

9 tourist hasn't visited ibiza since the 1960s

1.1 is sleeping(be quiet)

2 eat(always)

3 is running/want(look)

4 sets(hiện tại đơn)

5 is(hiện tại đơn)

6 am doing/think/am knowing(now)

7 buys(sometimes)

8 is

9 rains/is raining

10 is cooking/cooks

11 is studying( at the moment)

12 watches(hiện tại đơn)

13 is coming/don't want(hurry)

14 is singing(listen)

15 do..read(hiện tại đơn)

16 rises/is rising

17 hear/know/say(hiện tại đơn)

18 starts(hiện tại đơn)

19 will go/will...come

20 has(hiện tại đơn)

21 see/wear(hiện tại đơn)

22 buys(hiện tại đơn)

23 is eating(now)

24 are riding(look)

25 go(hiện tại đơn)

I.1 went

2 drove

3 arrived/was

4 asked

5 said

6 told

7 walked

8 saw

9 stopped/bought

10 was

11 didn't go

12 did...get

13 did...do/did

14 loved

15 got/had

16 met

17 did..watch

18 bought

19 did...do/went

20 took

21 did..go

22 didn't learn

23 weren't

24 were

25 wrote

I.1 had studied

2 had snowed

3 died

4 was waiting

5  work

6 was blowing

7 was going

8 had shined

9 took

10 was cycling

11 was moving/was picking

12 was raining

I.1 walk

2 worked

3 saw

4 need

5 went/bought

6 will leave

7 left

8 has worked

9 see

10 go

11 has read

12 have...come

13 was

14 walked

15 haven't been

16 walk

17 am studying

18 opens/closes

19 do you look

20 don't work

21 do you smoke

22 live

23 is coming/don't want

24 didn't work

25 hasn't worked

26 flows

27 flows

28 will learn/teaches

29 grow/don't grow

30 am not needing

31  enjoy/don't enjoy

32 don't believe

33 stays/stays

34 does your father do/isn't working

35 will get

36 had worked

37 burnt/was cooking