_______ necessary for us _______ English well.A.It’s; to learn B.It’s; learn C.That’s; learn
--- Is Mary friend? --- No, isn’t.
I’m behind Han Mei, so Han Mei is ________.
Henry is from ________ and he is ________.
—Are there _____pictures on the wall?—Yes, there are _____ .
Nick and I _____ 12 years old, but Jack is 14 years old.