A:①②
B:①③
C:②④
D:③④
因式分解:
(1)m2(n﹣2)﹣m(2﹣n)
(2)4(a﹣b)2+1+4(a﹣b)
Tom's ____ ____;we all enjoy being with him.
Talking with others _______ you feel less _______.