If you cook a potato and put it on the counter alongside a raw one, the raw potato will last for weeks and even sprout whereas the cooked potato will ferment in______.

A．She tried to help newcomers to her country.
B．She wanted to teach English better.
C．She planned to write about the evening school.
D．She was interested in foreigners.

A．He is ready to help Prof. Wang.
B．He will congratulate Prof. Wang.
C．He will pay a visit to Prof. Wang.
D．He will tell Prof. Wang the good news.