单项选择题

With the introduction of the computer, libraries today are quite different from（）they were in the past.

A．that
B．what
C．which
D．those

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I'm still unable to make myself（）in the discussion, which worries me a lot.

A．to be understood
B．understanding
C．understood
D．understand
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（）he is still working on the project, I don't mind when he will finish it.

A．In case
B．As long as
C．Even if
D．As far as
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