作业帮he needs one more stamp before his collection____.A has completedB completesC has been completedD is completed
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he needs one more stamp before his collection____.A has completedB completesC has been completedD is completed
he needs one more stamp before his collection____.
A has completed
B completes
C has been completed
D is completed
he needs one more stamp before his collection____.A has completedB completesC has been completedD is completed
c