A:22,32
B:12,1)
C:32,1)
D:22,1)
心脏中血液的流向是( )
世界上黑种人的故乡是指( )
(____)(1)A. first B.second C. three
(____)(2)A. classroom B.play C. playground
(____)(3)A. heavy B. high C. school
(____)(4)A. on B.in C. me
(____)(5)A.floor B. push C. swing