7.____________of the truth of the reports, he told his colleagues about it.
The soil is becoming poor because farmers here mostly use only one kind of chemical fertilizer for several years________.
With the city ________ clouded by dirty smog, the government has planned to shut down the four major coal-fired power plants.
The IOC Evaluation Commission has come to a ________ conclusion that Beijing is capable of hosting a successful 2022 winter Olympics.
Tom is so creative a person that he always has lots of ________ ideas in his mind, and sometimes we don’t even know what he is thinking about.
He is busy writing the article all the morning, only ________ occasionally to have a cup of coffee.