分解因式:x2+4x+4=______.
x2+4x+4=(x+2)2.
广州亚运的吉祥物是()
A.喜羊羊
B.懒羊羊
C.乐羊羊
D.大羊羊
If I _________you, I would give the money to charity. [ ]
A. am
B. was
C. were
D. would be