4 . Even though the President resigned, the whiff of scandal remained .

- "in the declaration of independence, it is stated that all people have certain rights that can't be taken away. when the government fails to protect these rights, the people have no choice but to remove that government and replace it with a government that will do its job and protect the people's rights."

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)