31. —How long_________each other before they_________married?
—For about a year.
A.have they known, get | B.did they know, were going to get |
C.do they know, are going to get | D.had they known, got |
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31. —How long_________each other before they_________married?
—For about a year.
A.have they known, get | B.did they know, were going to get |
C.do they know, are going to get | D.had they known, got |