Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 

In some countries, the disease burden could be prevented through environmental improvements. 

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. 

- Michel: "I failed my driving test again!" - Nick: “___________” 

It was not until the end of prehistoric times that the first wheeled vehicles appearing. 

- Anna: “Would you like a glass of beer, Emma?” - Emma: “_________” 

Some people often say that using cars is not as convenient than using motorbikes. 

Which of the following is NOT true, according to the passage? 

Corn, domesticated by the American Indians, was brought to Europe by Columbus. 

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. 

They asked me what did happen last night, but I was unable to tell them.