She is often langhed at _____ her classmates because of her laziness. [ ]

If we ________ careful, fire can be dangerous.

Mom, I got the best grade on the English test today.—Good job, son. I’m ______of you.

The article is ________ more difficult than that one, so I think I can understand it with the help of a dictionary.

If you are a little careful, I think you can _____the problem.