David and Susan didn’t give in to each other, so they _________ the whole time they were together.
A.have quarrelled | B.had quarrelled |
C.were quarrelling | D.had been quarrelling |
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David and Susan didn’t give in to each other, so they _________ the whole time they were together.
A.have quarrelled | B.had quarrelled |
C.were quarrelling | D.had been quarrelling |