7.—She's broken her arm again.
—Again? I ______ she _______ ever broken it before.
(A) don't know; has
(B) didn't know; had
(C) didn't know; has
(D) hadn't know; would
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統計: A(0), B(0), C(1), D(0), E(0) #529948
統計: A(0), B(0), C(1), D(0), E(0) #529948