单项选择题

I’’m sure your suggestion will ______ the problem.

A．contribute to solving
B．be contributed to solving
C．contribute to solve
D．be contributed to solving
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单项选择题
The passage is mainly about______.
A．what dogs can do.
B．how to keep dogs.
C．dogs and their masters.
D．reasons for keeping dogs.
单项选择题
________ was the most interesting feature of the Oxford English Dictionary.
A．A complete list of difficult words
B．Containing sentences that showed how each word was actually used
C．A 20-volume work
D．Showing word histories
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