The dying soldier had the message ________ straight to the commander.
A. sent
B. be sent
C. to be sent
D. being sent
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It is such an unusual work of art ________ everyone wants to have a look at it.
A. that
B. who
C. in which
D. where
When ________ through a telescope, the sun appears darker near the edge.
A. seeing
B. being seen
C. seen
D. see
Knowing the property of the machine is ________ we must do before using it.
A. that
B. what
C. because
D. because of
If he wants people to understand him, he should avoid using big words and ________ to make what he says interesting.
A. try
B. trying
C. tries
D. to try