—Betty,did your uncle get married in the year 1995?

—Betty,did your uncle get married in the year 1995?
—Yes,he______for about eight years.
A.has married B.has got married C.has been married D.was married
—Look,your father is playing the piano over there.
—He___be my father.He has gone to Beijing.
A.mustn't B.can't C.shouldn't D.mayn't