The telephone _____ three times in the last hour, and each time it _____ for my sister.
A.had rung; was | B.has rung; was | C.rang; has been | D.has been ringing; is |
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The telephone _____ three times in the last hour, and each time it _____ for my sister.
A.had rung; was | B.has rung; was | C.rang; has been | D.has been ringing; is |