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The pair of shoes ____ worn out. A. was B. were C. have been D. had been
The pair of shoes________ worn out．
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The pair of shoes __________ worn out.
A．was B．were C．have been D．had been
The pair of shoes worn out.
A. was B. were C. have been D. had been
A．was
B．were
C．have been
D．had been