The second paragraph used facts to develop the essential idea that ______.
A. a plant efficiently utilizes most of the water it absorbs
B. carbon dioxide is the essential substance needed for plant development
C. a plant needs more water is found in its composition
D. the stronger the wind, the more the water vapor loss
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What's important in training a parrot？
A. The energetic owner's help.
B. The trainer's patience.
C. Daily talks and feeding.
D. More care and proper diet.
Parents believe that television provides their children with good role models.
A. True
B. False
A．Not only one student would be late.B．The teacher would go over the syllabus.C．The tea
A. Not only one student would be late.
B. The teacher would go over the syllabus.
C. The teacher would find out the students' needs.
D. The teacher would find out who are late for the class.
Who would be most interested in the advances mentioned in the talk？
A. Inventors.
B. Science fiction writers.
C. Photographers.
D. Health-care workers.
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