下图表示的是纯净物、单质、化合物、含氧化合物、氧化物之间的包含与不包含关系，若整个大圆圈代表纯净物，则在下列选项中，正确指出①、②、③、④所属物质类别的是

A．①单质、③氧化物

B．②化合物、④氧化物

C．①单质、③含氧化合物

D．①单质、④化合物

根据句意及所给首字母在空格上填上相应的单词。

1. He often talks a______his family and he says he loves his wife and children very much.

2. Her aunt is a woman w______long, black hair.

3. — W______do you come here for?  — To have a meeting.

4. A turkey is m______bigger than a chicken.

5. He is not funny, and he is always very s______.