单项选择题

During his two-month stay in China, Tom never ______ a chance to practice his Chinese.

A．passed on
B．passed up
C．passed by
D．passed out
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单项选择题
According to the latest report, consumer confidence ______ a breathtaking 15 points last month, to its lowest level in 9 years.
A．soared
B．mutated
C．plummeted
D．fluctuated
单项选择题
The ______ emphasis on examinations is by far the worst form of competition in schools.
A．negligent
B．edible
C．fabulous
D．disproportionate
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