单项选择题

We ______ that diet is related to most types of cancer, but we don't have definite proof.

A．assure
B．suspect
C．ascertain
D．assert
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单项选择题
The beauty of the region has ______ the imagination of the countless artists.
A．pitched
B．nourished
C．preached
D．perished
单项选择题
When I was a child, I ______ the art galleries in town and learned a lot by copying the original paintings of many great masters.
A．haunted
B．hauled
C．lounged
D．strolled
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