5.

1.yes 2.yes

6.

1.I work 2.we work, you work, they work 3.he work's, she work's, it work's 

7. 

1.I am singing. 2.we are singing, you are singing, they are singing. 3.he is singing, she is singing, it is singing.

8.

1.Nomber 1

9.

1.helped 2.smiled 3.studied 4.stoped 5.went 6.I was

10.

1.didn't helped 2.didn't smiled 3.didn't studied 4.didn't stoped 5.didn't went 6.didn't was