含亚铁盐地下水抽出地面后呈现（）
A.黄色
B.绿色或黄绿色
C.黄褐色
D.黑色
E.蓝色
参考答案：C
Don’t blame them any more-this is because they are still young and lack experience.
A．exactly
B．simply
C．eventually
D．generally
把下列句子改为一般疑问句。
①This is my pencil.
______________________________________
②I'm Alan.
③That is an eraser.
④His name is Tony.
⑤It is a dictionary.
