— Has the little boy who saved the drowning girl left the school?— Not yet. He _______in Room203 of the teaching building right now.
#101974
A
in interviewing
B
is interviewed
C
has interviewed
D
is being interviewed
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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
We are confident that the environment ________ by our further efforts to reduce pollution.
#100189
A
improves
B
will be improved
C
has improved
D
was improved