C. You will have a seat if you don’t book in advance.
D. You can’t have a seat although you book in advance.
Question 45: She started working as a teacher of English ten years ago.
A. She had been working as a teacher of English for ten years.
B. She had worked with a teacher of English for ten years.
C. She has worked with a teacher of English for ten years.
D. She has been working as a teacher of English for ten years.
Read the following passage adapted from the Encyclopedia Britannica 2010 and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 46 to 50.
A person who tosses a can or a napkin on the ground is contributing to land pollution. This (46) of pollution mainly involves the depositing on land of solid wastes that cannot be broken down quickly or, in some cases, at all. Heaps of trash are not only unpleasant to look at - they can (47) interfere with the lives of plants and animals.
Land pollution also includes the build-up of (48) chemicals on land. The use of pesticides in farming is a major source of this type of pollution. These chemicals are spread over fields to kill insects, weeds, fungi, or rodents that are a threat to crops. But pesticides harm or (49) other living things too. When they drift with the wind or become absorbed (50) fruits and vegetables, they can become a source of health problems such as cancer and birth defects.
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