The man is a cleaner the zoo.[ ]
A. on
B. to
C. about
D. at
答案：D
绝对值大于2且小于5的所有整数的和是[ ]
A．0
B．7
C．14
D．28
His name is Justin Bieber. His family name is__________.
A. Justin B. Bieber C. Justin Bieber
