a) was 

b) was 

c) was 

d) was 

e) were 

f) were 

g) was 

h) was 

i) was 

j) was 

1.was

2.was

3.weren't/were

4.weren't/were

5.wasn't/was

6.was

B

They will have a lot of fun 

How can I go to Ho Chi Minh city? 

Why is Anna always late for class? 

1.If I get bad mark, my parents will be unhappy 

2.I didn't go to the party yesterday because I had a fever 

3.Nile river is the longest river in the world 

4.Don't use mobile phone in class, boys

The floor is cleaned by Lan every day 

Many schools are being built by the government in our city 

This report had to be finished by Lan last night