`I.`

1. Communicate: giao tiếp

2. Quickly: nhanh chóng

3. International: Quốc tế

4. Disaster: thảm họa

`II.`

1. It can be used to make telephone calls to anyone from a great distance via a radio link.

2. They are Dr. Martin Cooper and John F. Mitchell 

3.  The first model of mobile phone was sold in 1983

4. I like using a modern smart mobile phone since I can contact my friends easily and it is also a great source of entertainment. 

`C.`

`I.`

1. Hung said that he wanted to become a teacher

2. Were the residents of flooded villages taken to a safe place by rescue workers last night?

3. If she didn't eat too much junk food, she wouldn't put on weight

4. Rescue worker arrived in the area after the storm had already weakened

B. READING

I. Telephone, television, radio, and the Internet help people (1)communicate with each other. Because of these devices, ideas, and news of events spread (2) quickly all over the world. For example, within seconds, people can know the results of an election in another country. An (3) international football match comes into the homes of everyone with a television set. News of a (4) disaster, such as a flood, can bring help from distant countries. Within hours, help is on the way. This is because modern technology information travels fast.

II.

1. What can a cell phone use do?
We can use it to make telephone calls to anyone from a great distance via a radio link.
2.Who was the first cell phone demonstrated by?
Dr. Martin Cooper and John F. Mitchell of Motorola.
3. When was the first model of mobile phone sold?
Ten years later, in 1983, the first model of cell phone went on sale to the public.
4. Do you like using a modern smart mobile phone? Why or Why not? (Answer the question yourself)
+ Yes, I do.
Because it helps me relax and entertain while playing games 
+ No, I don't
Because it's not good for the eyes 

C.

 1. Hung said he wanted to become a teacher

2. Residents of flooded villages were taken to a safe place last night.

3. If she eats too much junk food, she will gain weight

4. After paramedics arrived in the area, the storm weakened

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