Henry has come in his raincoat and gumboots ,_____for rain.
A:prepared
B:preparing
C:having prepared
D:prepares
找朋友.
A.6∶15 B. 40:60 C. 12:23 D.14∶20
下列各句中,没有语病的一项是( )
Ⅰ.实验步骤: