Computers cannot make mistakes. Stories have been heard sometimes about computers paying people too much money or sending them (1)_____ for things they didn’t buy. These mistakes ae made by the programs. Some years ago an American computer-controlled rocket went (2)____ and had to be destroyed. The accident has been caused by a small mistake in one line of the program, which (3)______ the USA 18 million dollars. Criminals have found that “computer (4)_____ are a lot easier than robbing a bank.” Hundreds of millions of dollars are stolen from businesses every year by people (8)______ the information in computers.

Điền vào số 1

To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____ and downs with.

There are all sorts of things that can (3)______ about this special relationship. It may be the result of enjoying the same activities, having the outlook on life or  sharing experiences. Most of us have met  someone that we have immediately felt relaxed with as if we had known them for  years. (4)_______, it really takes you years to get to know someone well enough to consider your best friend.

To the majority of us, this is someone we trust completely and who understands us better (5)______ anyone else. It is the person you can turn to for impartial advice and a shoulder to cry on when life gets you down.

Điền vào số 2

Computers cannot make mistakes. Stories have been heard sometimes about computers paying people too much money or sending them (1)_____ for things they didn’t buy. These mistakes ae made by the programs. Some years ago an American computer-controlled rocket went (2)____ and had to be destroyed. The accident has been caused by a small mistake in one line of the program, which (3)______ the USA 18 million dollars. Criminals have found that “computer (4)_____ are a lot easier than robbing a bank.” Hundreds of millions of dollars are stolen from businesses every year by people (8)______ the information in computers.

Điền vào số 5

When the weather is cold, it is not very much fun to (1) ______a bus. People have to stand at a bus-stop for minutes or even hours. They talk about the bus and (2) _______about the weather. Most of them feel cold. Some have to drink coffee to stay warm.

Traveling by buses (3) _______pollution, but people often would rather drive their cars. Many people are not used to the bus schedules, and they do not like to wait.

On the other hand, many people have been (4) ______the bus every day for many years. They are used to it. They say the bus has been coming on time every day, and they have never been late for work. In (5) _______, they do not need a parking place in all that time. Buses are very convenient when you are used to them.

Điền vào số 4

When the weather is cold, it is not very much fun to (1) ______a bus. People have to stand at a bus-stop for minutes or even hours. They talk about the bus and (2) _______about the weather. Most of them feel cold. Some have to drink coffee to stay warm.

Traveling by buses (3) _______pollution, but people often would rather drive their cars. Many people are not used to the bus schedules, and they do not like to wait.

On the other hand, many people have been (4) ______the bus every day for many years. They are used to it. They say the bus has been coming on time every day, and they have never been late for work. In (5) _______, they do not need a parking place in all that time. Buses are very convenient when you are used to them. 

Điền vào số 2

When the weather is cold, it is not very much fun to (1) ______a bus. People have to stand at a bus-stop for minutes or even hours. They talk about the bus and (2) _______about the weather. Most of them feel cold. Some have to drink coffee to stay warm.

Traveling by buses (3) _______pollution, but people often would rather drive their cars. Many people are not used to the bus schedules, and they do not like to wait.

On the other hand, many people have been (4) ______the bus every day for many years. They are used to it. They say the bus has been coming on time every day, and they have never been late for work. In (5) _______, they do not need a parking place in all that time. Buses are very convenient when you are used to them. 

Điền vào số 1

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (2)______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.

Điền vào số 1