His decades of effort began to__________ , for his new breed of rice had become more popular.

The author of the text seems to oppose the idea of______.

The critical issue facing the scientists is to _____.

According to the passage, the most ambitious effort to control pollution ______.

Despite its efforts, the newspaper industry still cannot satisfy the readers owing to its _______ .

The author writes of the development of geology to demonstrate _______.

Success depends______ he efforts of the organization.

According to the author, scientists  ______.

According to scientists diabetes causes all the following EXCEPT_____.

We are confident that the environment _________by our further efforts to reduce pollution.

The scientists have absolute freedom as to what research they think it best to_______

Many scientists _____ their own eyes and ears than the theories of the ancients.