--Do you think the math problem was difficult?--Yes. But I could ________ make it.
________ are best friends. A.I and Lucy B.Lucy and I C.Lucy and me C.Me and Lucy
I have two dresses. One is red; _________ is black.
The story ______ is very interesting.
______ is a girl and _____ am a boy.
This is my bag. ______ is over there.