I

1, A – of

2, A – of

3, C – himself

4, D – sense of humor

5, A – orphan

II

1, am reading

2, have known

3, have not seen

4, goes

5, didn’t have

III

1, Nam asked me if I could help him with his homework.

2, The teacher told her students not to talk in class.

3, Tu’s father told him to get up early to learn his lesson.

4, My father used to smoke a lot 5 years ago.

5, The blue dictionary isn’t as expensive as the red one.

IV

1, No, it isn’t.

2, London is very crowded in summer.

3, Because London has an excellent underground system.

4, It has more than eight million visitors a year.

5, Yes, it does.

Chúc bạn sức khỏe và học tốt nha!