Mark the letter A, B, C, or D on the answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 

Wastewater is treated and turned into drinking water. This is done to ensure there is no shortage of fresh water.

He has been successful in his career thanks to the ________ from his family and friends.

Read the following passage and mark the letter A, B, C or D on your answer sheet to choose the word or phrase that best fits each other numbered blanks. 

     Artificial Intelligence (AI) in Viet Nam is developing rapidly and gradually affirming that it is a pillar and (1) ________ technology in the fourth industrial revolution. Technological powers have long built their own AI development strategies, taking this technology as the core for (2) ________ economic development.” OpenGov reports. 

     Over the last few years, more organizations have started developing and applying AI in various fields including education, telecommunications, retail, healthcare and (3) ________ which have not only gradually dominated the market but also earned huge profits. 

     Currently, AI is the focus of the global technology circle and governments around the world. Many countries have spent billions of US dollars on AI development strategies with the ambition to be the frontrunners of AI. 

     Viet Nam is not outside this development trend either. In recent years, Viet Nam's AI industry has made visible strides with increasing AI content in various products, the release noted. Large domestic technology corporations (4) ________ are interested in investing in and building AI sources implement AI projects.  Many domestic companies as well as innovative start-ups, also tend to invest in AI and carry out many new applications in new business models. (5) ________, like many countries that prioritize. AI investment. Viet Nam lacks large databases, infrastructure, resources, and a solid foundation from AI businesses.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the three in pronunciation in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes the following exchanges. 

The word "affected" in paragraph 1 almost means __________.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. 

Over the last few years, more organizations have started developing and applying AI in various fields including education, telecommunications, retail, healthcare and (3) ________ which have not only gradually dominated the market but also earned huge profits.

Lucy is talking to Huong, her Vietnamese friend, about air pollution in Hanoi.

Lucy: "Is there anything we can do about the toxic air pollution in Hanoi recently?"

Huong: " ____________, but the only thing we can do is to avoid outdoors and wear masks."

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

     Do you like tuna? People in many countries like to eat tuna whether it is canned, cooked, or raw. Unfortunately, humans are now eating too much tuna, and some species are becoming rare.

     The name “tuna” refers to over 48 species of carnivorous fish that live in Pacific, Atlantic, Indian, and Mediterranean oceans. The most important commercial species of tuna are yellowfin, bluefin, bigeye, albacore, and skipjack. Skipjack makes up the majority of canned tuna, while the other species are served either raw or cooked. 

     While the fishing of skipjack tuna is currently sustainable, it is widely accepted that the other species have been severely overfished. In particular, bluefin tuna stocks are now at risk of collapse. From 1976 to 2006, the population of bluefin decreased by 92%. Overfishing continues despite repeated warnings. In 2009, scientists recommended that the quota for northern bluefin tuna be set at 7,500 tonnes, but the Atlantic Tuna Commision set it at 16,000 tonnes. Even this limit was ignored, with the total catch of Atlantic bluefin estimated to be 60,000 tonnes in 2009. 

     The reason for this over-fishing is that yellowfin, bluefin, and bigeye tuna are prized for use as sashimi (raw fish). This makes them very valuable. In 2011, a bluefin tuna weighing 342 kilograms was sold in Tokyo for 32,49 million yen (USD 396,000). Recently, the sashimi-tuna species have become so rare, and their price is so high that many sashimi restaurants have had to close.

     In response to decreasing tuna stocks, scientists have been trying to breed tuna in captivity. In 2009, an Austrian company succeeded in breeding southern bluefin tuna in land-based tanks. This is an important development because tuna farming currently relies on raising juvenile tuna that are caught in the wild.  Catching these juvenile tuna makes overfishing even worse. 

     Everyone needs to work together to help the wild tuna survive. You can help to save the wild tuna, too.  Next time you have tuna, check to make sure you aren’t eating a wild bluefin, yellowfin, or bigeye. Hopefully, if we all play our part, it won’t be too long before stocks of tuna recover to their former levels.