问题
选择题
His disappearance(失踪)______ by the police.
A．looked at
B．will be looked in
C．is being looked into
D．has been looked up
答案
答案：C
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His disappearance(失踪)______ by the police.
A．looked at
B．will be looked in
C．is being looked into
D．has been looked up
答案：C