单项选择题

The author of the report is well ______ with the problems in the hospital because he has been working there for many years.

A．informed
B．acquainted
C．enlightened
D．acknowledged
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单项选择题
It is vital that enough money ______ to fund the project.
A．be collected
B．must be collected
C．is collected
D．can be collected
单项选择题
I've already told you that I'm going to buy it, ______.
A．no matter how it costs
B．however does it costs much
C．how much does it cost
D．however much it costs
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