单项选择题

Texas and Louisiana______the nation in the production of sulfur and are also important salt-mining states.

A．lead
B．take
C．contribute
D．offer
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单项选择题
To do anything you like you have to see______with your manager.
A．heart to heart
B．face to face
C．side by side
D．eye to eye
单项选择题
Worrying about what is right is always more important than______about who is right.
A．worry
B．worrying
C．to worry
D．worded
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