语法题1．I decide to go to the library as soon as I ( )

语法题1．I decide to go to the library as soon as I ( )
1．I decide to go to the library as soon as I ( )
A.finished what I was doing
B.finished what I did
C.would finish what I was doing
D.finish what I did
2．－－Alice came back home the day before yesterday .
----Really?Where(
A.has she been
B.had she been
C.has she gone
D.had she gone