Bài 1:

(+)

I was at home yesterday.

I did homework yesterday morning.

I played badminton.

I played volleyball.

I watched TV.

I ate noodles.

I went to school.

I wrote an essay.

I won this game.

I cooked dinner.

(-)

I didn't be at home yesterday.

I didn't do homework yesterday morning.

I didn't play badminton.

I didn't play volleyball.

I didn't watch TV.

I didn't eat noodles.

I didn't go to school.

I didn't write an essay.

I didn't win this game.

I didn't cook dinner.

(?)

Did you do homework?

Did you eat pork?

Did you study English?

Did you go to school?

Did you cook dinner?

Did you play badminton?

Did you read comics?

Did you wash you clothes?

Did you see someone?

Did you search the Internet?

+KHẲNG ĐỊNH 
She did my homework for me

They did my homework for me

We did my homework for me

He did my homework for me

It did my homework for me

Hang did my homework for me

My friend did my homework for me

Giang did my homework for me

Tri did my homework for me

Lan did my homework for me

+PHỦ ĐỊNH 

She didn't do my homework for me

They didn't do my homework for me

We didn't do my homework for me

He didn't do my homework for me

It didn't do my homework for me

Hang didn't do my homework for me

My friend didn't do my homework for me

Giang didn't do my homework for me

Tri didn't do my homework for me

Lan didn't do my homework for me