单项选择题

49 The end of winter is the most dangerous time for the animals in Yellowstone Park as food becomes even ______.

A．coarser
B．scarcer
C．rarer
D．harder
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单项选择题
Some journalists often overstate the situation so that their news may create a great ______.
A．explosion
B．sensation
C．exaggeration
D．stimulation
单项选择题
As a result of careless washing, the jacket ______ to a child's size.
A．shrank
B．compressed
C．dropped
D．decreased
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