单项选择题

Passage Three
Questions 33 to 35 are based on the passage you have just heard.

A. By flying in circles around a field.
B. By detecting a chemical signal.
C. By inspecting individual corn leaves.
D. By noticing the caterpillar’s coloration.
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单项选择题
A. He had not expected such a bold question from Ben. B. He wondered why Ben didn’t run away. C. Ben wasn’t afraid of him. D. Ben had a gun in his hands.
A. He had not expected such a bold question from Ben.
B. He wondered why Ben didn’t run away.
C. Ben wasn’t afraid of him.
D. Ben had a gun in his hands.
单项选择题
A. The manager is too busy to see the man now. B. The manager will be available before the meeting. C. The man should come back tomorrow. D. The man should go to the meeting.
A. The manager is too busy to see the man now.
B. The manager will be available before the meeting.
C. The man should come back tomorrow.
D. The man should go to the meeting.
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