Before my family moved to a new home in Eldridge, my 6-year-old son John had shared a room with his sister Jane, who always looked forward to her dream bedroom. Now, she ____ had her own room. But the boy ____ to sleep alone. “Bad guys will break into my room at night. I’m ____ them,” said the boy.

I’d tried everything to get him to sleep in his own room, but nothing ____. John said he couldn’t stop the terrible thoughts. He asked me to call the ____ to help him. At first, I was afraid that the officers would not help us. After I took John to the Eldridge Police Department, he made friends with Officer Schwartz at once.

Then, Officer Schwartz came over to our home. He carefully ____ my son’s bedroom to make him believe that there were no bad guys in his room. He said to my son, “I experienced such ____ before bedtime, too. But I always made them go away by thinking about ____ things, such as receiving Christmas gifts.” John slept alone in his room for the first time that night.

The next day, Officer Schwartz returned to our home and took John to his school. I was more than ____ that he took time out of his busy day to help John. I am sure John will remember the ____ Officer Schwartz has shown him forever.

Where is the Best Place to Find Help with Homework?

Khan Academy ★★★★★

Cost: Free

Level: from kindergarten through high school

Khan Academy is probably the best-known Homework Help Service in the world. It started as a tutoring（课外辅导） project created by an uncle tutoring his cousin, and has developed into an 80-person group, hoping “to provide a free world-class education for anyone, anywhere”.

As the only service in our review that covers all knowledge levels at no cost to users, Khan Academy is our top pick.

Princeton Review ★★★★

Cost: $115 a month

Level: From primary school through college

Princeton Review is an online tutoring service that offers homework help in all school subjects. Every evening their teachers are helping more than 5, 000 students. They offer their tutoring services to students in primary, middle school-as well as college students. Teachers work one on one with students and are usually available in 60 seconds or less after logging（登录） online.

If you would like to improve your grades and get your questions answered, Princeton Review could be for you. However, the price may be a little higher if your difficult questions require long explanations（解释）.

24 Hour Answers ★★★

Cost: depending on the service

Level: College

24 Hour Answers offers homework help through online tutoring, a homework library, and a homework help center. What we like about 24 Hour Answers is the pay-as-you-go format. Instead of having to pay for a monthly membership that you may not use, you can choose the kind of help you need and pay only for that.