2. myself

3. did by herself

4. carry it by yourself

5. gave the information about herself

6. do it by myself 

7. did it by myself 

8. by himself 

X. 

1. Why were you late this morning? Because my alarm didn't ring.

2. Why do you feel so tired? Because I stayed up late last night.

3. Why were you so unhappy? Because I got bad marks on the last test.

4. Why do you have a bad headache? Because I watched the late movie on TV last night.

5. Why did teacher get angry yesterday? Because many student hadn't finished their homework.

6. Why did Mai cry this morning? Because the teacher blamed her for the mistake.

7. Why weren't Tung in his class yesterday? Because he was sick at home.

8. Why didn't you come to Susan's party last weekend? Because I went to my hometown with my parents.

2.Nobody. I painted it myself.

3.I think she learn it herself. Nobody taught her.

4.Why can you carry it yourself?

5.Miss Mai gave it herself to me.

6.No, thanks. I'll do it myself.

7.No, I cut it myself.

8.Nobody, he discovered it himself.

X.

1.Why were you late this morning? - Because my alarm didn't ring.

2.Why do you feel so tired? - Because I stayed up late last night.

3.Why are you so unhappy? - Because I got bad marks on the last test.

4.Why do you have a bad headache? - Because I watched the late movie on the TV last night.

5.Why did the teacher get angry yesterday? - Because many students didn't finish their homework.

6.Why did Mai cry this morning? - Because her teacher blamed her for her mistake.

7.Why wasn't Tung in the class yesterday? - Because he was sick at home.

8.Why didn't you come to Susan's party last weekend? - Because I went to my hometown with my parents.