Though the price of gas has gone up a lot since November 2010, the man doesn’t     it at all, for he has a well-paid job.

Do you think the idea he stuck ____correct?

Even if these chemicals are still in experimental stages, they _____ to be a number one hit.

 I used to quarrel a lot with my parents, but now we ______ fine.

In order to improve your writing, you’d better write          .