Đáp án: B

Giải thích: In spite of the rapid and remarkable conquests of medical science today, there is no laboratory that manufactures blood.

Đáp án: A

Giải thích: Unavailability of blood may cost lives.

Đáp án: B

Giải thích: Blood donation is harmless and safe in the body.

Đáp án: A

Because:  So, today's donor may be tomorrow's recipient.

1. ways

2. understood

3. sounds

4. important

5. vocabulary

6. well

7.express

8.main

9.say

10.show

Đáp án A

1 many

2 illiterate

3 people

We will use solar energy to solve the problem of energy shortage

=>Solar energy.....will be used to solve the problem of energy shortage ........

In spite of not having enough money,he was able to buy a new bike

=>Although.....he didn't have enough money, he was able to buy a new bike .......

It is said that you are very rich

=>You..........are said to be very rich ......

I find reading English books interesting

=>I am....interested in reading English books ....

There are English and French translations of the book (been)

=>The book......has been translated into ...English and French

We moved to HN in 2010 (since)

=>We have........lived in Ha Noi since 2010.........

This resort has more convenient facilities than that one (as)

=>That resort doesn't......have as much facilities as this one ......

Questions :

1)What happened before printing presses were invented?

Before printing presses were invented , only rich people like kings and dukes could afford to buy books.

2)Why were books wanted before printing presses were in vented?

They wanted books because they were expensive and there was something magical about them .

3)What is common feature of a book and a computer?

They were very large and expensive.

4)what situation has thoroughly changed nowadays?

Lots of people not only own microcomputer but also know how to use them.

Speech is one of the most important (1) __ways_____ of communicating. It consists of far more than just making noises. To talk and also to be (2) _______understood_____ by other people, we have to speak a language, that is, we have to use combinations of (3) _____sounds___ that everyone agrees stand for particular object or idea. Communication would be impossible if everyone made up their own language.

(4) ___learning_____ a language properly is very important. The basic (5) ____vocabulary______ of English is not very large, and only about 2000 words are needed to (6) ___speak_____ it quite well. But the more words you know, the more ideas you can (7) ____express____ and the more precise you can be about their exact meaning.

Words are the (8) ______main______ thing we use in communicating what we want to say. The (9) ____way_____ we say the words is also very important. Our tone of voice can express many emotions and (10) ____show____ whether we are pleased or angry, for instance.