摘要：I, your good friend, will try my best to help you. A. who is B. who am C. that is D. what is
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I, __________ your good friend, will try my best to help you out.
A. who is B. who am C. that is D. what is
I, ______ your good friend, will try my best to help you out
A who is B who am C that is D which am
I, ________ your good friend, will try my best to help you out.
[ ]
A．who is
B．who am
C．that is
D．which am