Every individual _________ in a continually changing world of experience of which he or she is the center.
#102440
A
exists
B
will exist
C
is existing
D
has existed
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 This is his only request that the room ______ after being used.
#101544
A
is cleaned
B
will be cleaned
C
would be cleaned
D
be cleaned
When he looked up, he suddenly found himself       by a group of teenagers,       looked at him anxiously.
#103267
A
to be surrounded; which
B
surrounded; who
C
be surrounded; who
D
having been surrounded; which