1.I，_______your good friend,will try my best to help you out,
A.who,is B.who,am C.that,is D.which am
2.The man____has gone to Japan.
A.whom I told you B.that I told you
C.whom I told you about him
D.I told you about
3.All_____is needed is a supply of oil.
A.the thing B.that C.where D.which
4.July 27,1989is the day_______I will never forget ,when we had a wonderful time.
A.on which B.which C.what D.where
5.It is the factory________produces all kinds of TV sets.
A.in which B.which C.what D.where