I find it interesting ___________ (work) with him.
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_________ many times, he couldn't understand it.
A. Told
B. Having been told
C. Telling
D. Having told
The library is now __________ .
A. closing
B. has been closed
C. closed
D. in closing
The girl raised her voice in order to make herself_________ .
A. hear
B. to hear
C. hearing
D. heard