The grandma's tone of voice seemed to ______ that she was upset.

I have answered her ________ question, but now she has more.

Scientists are researching the _____ between processed foods and Alzheimer's disease.

They are trying to ______ the obstacles to their education by making sure they get enough sleep.

There is a long _______ of speaking in a less formal manner than we write.

Lately, the news has placed great _________ on the state of the economy.

I haven't been able to _________ the recommended library book.

a suffix that forms an adjective

A suffix that forms a verb

a Greek root that means time

This variation turns the word "acid" into a verb

This turns the word "bother" into an adjective