Ex2 

1 visits

2 occurs

3 fixes

4 left 

5 were visiting

6 became

7 was waiting

8 called

9 were you doing

10 was chatting

Ex6 

1 Mr Brown said that they would come on Monday 

2 Mai said that her brother doesn't like eating sticky rice 

3 Nam said that he wanted to join in the activities in the festival

4 Tan said that he would clean all the doors and windows before Tet

5 Nam's father said that they had take at least 2 bottles of water for the trip.

6 Lan said that she would have to write a composition about environment in the contest.

7 Linh said that she could do the exercise.

8 Lan'mother said that she had to go to bed early

9 Mai said that her father was in the garden then.

10 Nam said that he would answer the phone the following day.

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~ 𝓒𝓱𝓲𝓵𝓵 𝔀𝓲𝓽𝓱 𝓶𝓮 ~