Bài 1:

1,Hanh said that Lan was doing her homework then 

2,Juddy told me he would phone me when he came back

3,Liz was invited to the rice-cooking festival by Ba

4,The Christmast tree was decorated beautifully by my mother 

Bài 2:

1,worked 

2,was you doing 

3,has lived 

4,arrived /was cooking 

5,has already finished 

1/ Hanh said Lan was doing her homework then.

2/ Juddy told me she would phone me when she came back.

3/ Nhi said that she had a lot of toys.

4/ Liz was invited to the rice-cooking festival by Ba.

5/ The Christmas tree was decorated beautìully by my mother.

$IV.$

1/ worked

2/ were-doing

3/ has lived

4/ arrived-was cooking 

5/ has already finished