Exercise 2:

1. My dad is watering some plants in the garden.

2. My mom is cleaning the floor.

3. Mary is having lunch with her friends at a restaurant.

4. They are asking a man about the way at the rainway station.

5. My student is drawing a beautiful picture.

Exercise 3:

1. have bought 

2. haven't planned

3. have gone

4. haven't finished

5. Have you learned 

Exercise 4:

1. are / reach

2. comes  

3. came / had left 

4. has never flown

5. have just decided / would undertake 

6. would take 

7. was  

8. am attending / was attending 

9. arrive / will be waiting 

10. had lived 

11. got / had already arrived

12. will see / see / will have graduated.

13. visited / was  

#chuchoctot

Xin hay nhất ạ!!!

* Exercise 2 :

1. My dad is watering some plants in the garden

2. My mom is cleaning the floor

3. Mary is having lunch with her friends at a restaurant

4. They are asking a man about the way at the rainway station

5. My student is drawing a beautiful picture

* Exercise 3 :

1. They have bought a new lamp

2. We haven't planned our holiday yet

3. He just have gone out for 2 hours

4. I haven't finished my plan

5. Have you learned this lesson yet ?

* Exercise 4 :

1.In all the world, there are only 14 mountains that reach above 8,000 meters.

2.He sometimes comes to see his parents.

3.When I came, she had left for Dalat ten minutes ago.

4.My grandfather never has never flown in an airplane, and he has no intention of ever doing so.

5.We just have just decided that we would undertake the job.

6.He told me that he would take a trip to California the following week.

7.I knew that this road was too narrow.

8.Right now I am attending class. Yesterday at this time I was attending class.

9.Tomorrow I’m going to leave for home. When I arrive at the airport, Mary will be waiting for me.

10.Margaret was born in 1950. By last year, she had lived on this earth for 55 years.

11.The traffic was very heavy. By the time I got to Mary’s party, everyone already had already arrived

12.I will graduate in June. I will see you in July. By the time I see you, I will have graduated.

13.I visited my uncle’s home regularly when I was a child.