A.Bid
B.To bid
C.Bidding
D.To be bidden

A.politic
B.politics
C.politician
D.political

A.politics
B.politician
C.political
D.politically

A.is due
B.is due to
C.is due for
D.due to

A.about
B.for
C.with
D.on

A.was I
B.am I
C.are you
D.I was

A.did I came
B.I came
C.do I come
D.I come

A.however
B.therefore
C.since
D.as

A.so
B.however
C.as
D.because

A.so
B.therefore
C.since
D.as

A.played
B.play
C.playing
D.plays