It is widely known that the excessive use of pesticides is producing a detrimental effect on the local groundwater.

Michael Hart was the ____ of Project Gutenberg, one of the longest-lasting online library projects.

Thanks to the help of the teacher, she is ____ encouraging progress in math.

Last year, my father ________, but now after a bad cough, he has given it up.

I think mobile phones are ___________ for people of all ages.

Which of the following is the best title for the passage?

Mark the letter A, B, C, or D on your answer sheet to indicate the word CLOSEST in meaning to the underlined word in each of the following questions.

Many of the immigrants have intermarried with the island's original inhabitants.

The moment I was seeing him, I realized I had met him somewhere before.