There are several factors that (15)____the English language essential (16)___communication in our current time. First of all, it is the most common foreign language. This means that two people (17) ____ come from different countries usually use English as a common language to (18) ______. That’s why everyone needs to learn the language in order to get in touch on an (19)_______level. Speaking it will help you communicate with people from countries all over the world, (20)_______just English-speaking ones.

15. A. makes B. make C. making D. made

16. A. to B. with C. in D. from

17. A. whom B. which C. who D. that

18. A. communicating B. communication C. communicate D. communicated

19. A. international B. national C. internationally D. nationality

20. A. no B. without C. with D. not

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 1 to 5.

Dolphins are one of the most intelligent species on the planet, which makes them a very interesting animal to scientists. In their natural habitats, dolphins use various vocalization techniques. They whistle and squeak to recognize members of their pod, identify and protect their young, and call out warnings of danger. They also make clicking sounds used for echolocation to find food and obstacles in dark and murky waters.

Amazingly, the whistling sound that the bottlenose dolphin makes has been found to have a similar pattern to human language. They always make conversational sounds when they greet each other. If you listen to dolphins' squeaks and squeals, it will sound like they are having a conversation.

Dolphins usually use both sound and body language to communicate with each other. It is through gesture and body language, however, that most of their communication with humans comes. Dolphins can be trained to perform complicated tricks. This suggests they have a high level of intelligence and communication capacity. If they work for a long time with a trainer, they are able to recognize and understand human commands.

A lot of dolphin communication has been studied using dolphins in captive environments. These studies have been criticized because some marine biologists believe that dolphins living in aquariums or research centers cannot be considered "normal." Even so, most believe that studying dolphin communication in captivity is useful for beginning to understand the complexity of dolphin communication. After all, dolphins are one of the most intelligent animals. Their ability to communicate is impressive and worthy of study.

All of the following are true about dolphin communication EXCEPT _______.

A. dolphins' squeals and squeaks sound conversational to the human ear

B. dolphins' clicking sounds are sometimes used to greet humans

C. communication using sounds and gestures occurs between dolphins

D. body language and gestures are used for communication with humans

Nowadays, with the help of Communication Technology, it is much easy for us to study or improve our know. One way to do that is online learning in which people from one country can attend a college or university in others. Online learning is very convenient and cheap because of we just stay at home and use a computer. Many universities in the world have been offered online classes for a number of years, and many students who have taken online classes say that they like it so much. The only reason is because they do not have travel to a building at a busy timetable to listen to a professor. In addition, online learning programs are also diverse, so learners can receive programs for all levels from a distance education. Any online programs are very good and believable. They provide students of all information they need to finish their course. Moreover, you should not send money to any schools that say you can get a college degree without doing any work. These online courses might be illegal organizations. So, thinking carefully is necessary before getting an education online. Be alert!

Tìm lỗi sai ạ 

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 1 to 5.

Dolphins are one of the most intelligent species on the planet, which makes them a very interesting animal to scientists. In their natural habitats, dolphins use various vocalization techniques. They whistle and squeak to recognize members of their pod, identify and protect their young, and call out warnings of danger. They also make clicking sounds used for echolocation to find food and obstacles in dark and murky waters.

Amazingly, the whistling sound that the bottlenose dolphin makes has been found to have a similar pattern to human language. They always make conversational sounds when they greet each other. If you listen to dolphins' squeaks and squeals, it will sound like they are having a conversation.

Dolphins usually use both sound and body language to communicate with each other. It is through gesture and body language, however, that most of their communication with humans comes. Dolphins can be trained to perform complicated tricks. This suggests they have a high level of intelligence and communication capacity. If they work for a long time with a trainer, they are able to recognize and understand human commands.

A lot of dolphin communication has been studied using dolphins in captive environments. These studies have been criticized because some marine biologists believe that dolphins living in aquariums or research centers cannot be considered "normal." Even so, most believe that studying dolphin communication in captivity is useful for beginning to understand the complexity of dolphin communication. After all, dolphins are one of the most intelligent animals. Their ability to communicate is impressive and worthy of study.

According to paragraph 4, what do some marine biologists think about captive dolphins?

A. Their relationships are too personal with marine biologists.

B. They can't be considered accurate subjects for biological studies.

C. They can communicate exactly the same as humans do.

D. They easily demonstrate how dolphins act in the wild.