Not only _____interested in changing teaching methods but _____beginning to show an interest in it.

A．the teacher himself is; all his students are

B．the teacher himself is; are all his students

C．is the teacher himself; are all his students

D．is the teacher himself; all his students are

印度的水稻主要分布在（　　）

A．恒河中上游地区

B．恒河中下游地区

C．德干高原西北部

D．德干高原东北部