课本中有一幅画（如图），其中的内容是一只小鸟和水中的金鱼生活在一起，制作这个鸟笼子的高分子薄膜材料具备的性质是

A．绝热

B．透气

C．透水

D．导电

When _____ his view about his job as a teacher, Mike said he found it very interesting and rewarding.

A．asking

B．asked

C．having asked

D．to be asked