They'd have been able to return the bottle if they ..... the labels.
Aisn't torn off
Bweren't torn off
Chadn't torn off
Dnone of these
Aisn't torn off
Bweren't torn off
Chadn't torn off
Dnone of these
Related Questions:
Choose the appropriate form of the verb.
Latha's career would have been ruined if she (not pass) the promotion test.