Do you think that people are _______off than they were five years ago as our standard of living is improving.

These mistakes are very___________ among students, so we’re not surprised if you also make such mistakes.

—What do you think of this matter?  —This is a matter of __________ importance. I think.

 －Derrick, don't you think you should take a vacation? Even one or two days would be fine.－There's           . There's too much work.

Harry Potter stories are____both the teenagers and adults.