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.
Vietnam is prone to destructive storms and floods due to their long coastline, killing hundreds of people in Vietnam each year.




A.prone to
B.hundreds of people
C.their long coastline
D.storms and floods

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29.
It is true that keeping fit will benefit a person’s health in many ways. It has become clear in recent years, that a large number of people are doing less and less exercise and this is now causing many serious illnesses, putting a strain on doctors and hospitals. However, some experts believe that too much exercise can do just as much (25) ________.
Although it is true that moderate exercise such as walking can be very beneficial to a person’s health, it is not the only one factor (26) _______ keeps us healthy. Diet is also extremely important and I would argue that it is probably even more important than exercise, although the ideal is for both of these factors to work together. It seems to me that many people are unwilling to put in the effort required to become fitter.
(27)_______, too much exercise can also cause problems. So people are urged to take moderate exercise and eat moderately healthily rather than embarking on extreme diets and training. In too many instances, ultra-fit people have had heart attacks or dropped down dead.
In all, governments need to find ways of (28) ________ people to take responsibility for their own health. People need to realize that eating healthy food does not have to cost a (29) ________, nor is it difficult to prepare healthy meals themselves. People need to be better educated about their health.
(29)




A.benefit
B.wealth
C.treasure
D.fortune

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 35 to 42.
What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.
Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitment signals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.
What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.
(Source: TOEFL Reading)
It can be inferred from the passage that one main difference between termites and ants is that termites ______ .




A.protect their nests
B.eat almost no animal substances
C.live above ground
D.are eusocial