(2014·东北三校模拟)________about the student，the teacher called his parents to find out why he was so often absent from class.
#88443
A
Concerning
B
Concern
C
Concerned
D
To concern
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Finding her car stolen, ______
#89913
A
a policeman was asked to help
B
the area was searched thoroughly
C
it was looked for everywhere
D
she hurried to a policeman for help
Time should be made full use of _________ ourselves.
#96584
A
improving
B
to improve
C
for improving
D
improve
They enjoyed _____ a wonderful evening at the Country Club．
#98395
A
spent
B
to spend
C
spending
D
spend
Today we have chat rooms, text messaging, emailing… but we seem ________the art of communicating face-to-face.
#94369
A
Losing
B
to be losing
C
to be lost
D
having lost