单项选择题

The reason why the rock was hard to get down was that_________.

A．it had been worn smooth
B．there was no grass on it
C．it was wet and slippery
D．it was soft and sandy
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单项选择题
According to the passage we know that_________.
A．the writer decided to push through the thick bushes
B．the writer decided to walk along the valley
C．the writer wanted to stop climbing
D．the writer tried to find two eggs
单项选择题
At the end of the story, the writer knew that_________.
A．a tiger had run away
B．a tiger was close to them
C．the men had seen a tiger
D．a tiger had seen them
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