A.in which
B.in what
C.from what
D.from which
A.have I known
B.had I known
C.do I know
D.did I know
A.How
B.Extremely
C.Very
D.So
A.after
B.if
C.since
D.unless
A.to
B.for
C.with
D.from
A.liking
B.to be like
C.to like
D.to be liking
A.off
B.along
C.on
D.around