I, 

1. playing

2,to do

3, walk

4, did you play

5, be 

6, going

7 practise

8 to have

9 is going to participate

10, received

II, 

1, thanks for your letter/ i'pleased for you enjoyable on summer holiday

2, we received on the second semester report last month

3, i'm good at math and El

4, my teacher told me to improve literature and physics

5, i'm going to nha trang to celebrate moon festival with my familyby bus this week

6, send you about postcard

còn bài 2 thì tí nk mik cho nha

h mik mắc việc

3 walk

4Did , play

5be

6going

7practice

8to have

9will participate

10received