问题
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
B:did they know, were going to get
C:do they know, are going to get
D:had they known, got
正确答案是：
同类题型
What_____Mike_____last Saturday night
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