Question

I, ________ your good friend,will try my best to help you out．

A. who is
B. who am
C. that is
D. what is

Answer 1

答案B
定语从句的引导词作主语时，谓语动词与先行词的人称和数保持一致。

Answer 2

37.
I,
_
your
good
friend,
will
try
my
best
to
help
you
out.
B
A(I后有逗号表明是非限制性定语从句,不可以用that)
选B.
这

Answer 3

I,___your
good
friend,will
try
my
best
to
help
you
out.
A.who
is
B.who
am
C.that
is
D.what
is
选B
定语从句
先行词在从句中作主语，又是人，所以可以用who
又因为【]
am】所以谓语动词用am
有不会的可以再问我