Phần 3 :

1. Rewrite

1. The telephone was invented in 1876

2. I asked Nga if she had many friends

3. The man standing near the window is Nam's father.

4. Susan said that her sister would come to see her the following week

5. It is difficult to understand the question 

6. Would you mind if I saw your new school bag

2.Complete

1. Last summer, I/ go/ Thailand / father / his business trip.

-> Last summer, I went to Thailand with my father on his business trip.

2. We /leave /Tan Son Nhat airport/12 June / 2004 /6a.m. 

-> We left the Tan Son Nhat airport on $12^{nd}$ at 6a.m

3. We /lucky/have / enough time la sightseeing tour.

-> We were lucky to have enough time la sightseeing tour.

4. Through this sightseeing tour/ I/ see/learn /many wonderful things

-> Through this sightseeing tour , I saw and learned many wonderful things

Part 1: 

(1) The telephone was invented in 1876

(2) I asked Nga if she had many friends

(3) The man standing near the window is Nam's father.

(4) Susan said that her sister would come to see her the following week

(5) It is difficult to understand the question 

(6) Would you mind if I saw your new school bag

Part 2:

(1) Last summer, I went to Thailand with my father on his business trip.

(2) We left the Tan Son Nhat airport on 12nd at 6 a.m

(3) We were lucky to have enough time la sightseeing tour.

(4) Through this sightseeing tour , I saw and learned many wonderful things