Why did the writer say that Chicago was a very big city？
A. Because it was impossible (不可能的) for him to happen to know the man's friend.
Because he knew the man's friend.
C. Because he didn't want to look for the man's friend.
查看答案
【B6】
A. ordinary
B. interesting
C. wonderful
What topics does the professor mainly discuss？ Click on two answers.
A. How predators find, catch, and eat prey
Behaviors that help prey avoid predators
Changes in predator and prey populations
Defensive coloration in prey animals
What point does the professor make about the snow that forms a glacier？
A. It is conserved.
B. It is light and fluffy.
C. It is denser than ice.
D. It is very dirty.
According to the conversation, which statements about peregrine falcons are true？ Click on
A. They naturally prey on geese and ducks.
B. They are the largest of all predatory birds.
C. They are more intelligent than geese.
D. They can fly faster than any other bird.
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