根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Homework is a major part of going to school: It’s your teachers’ way of evaluating how much you understand what's going on in class.        Luckily, you can do a few things to make homework less burden.
Be sure you understand the homework.
Write your homework down in your notebook or day planner if you need to.        It’s much easier to take a minute to ask the teacher during or after class than to struggle to remember later that night!
Use any extra time in school.
Many schools have study halls that are specifically designed to allow students to study. It’s tempting(诱惑人的) to hang out with friends during study periods or unstructured (松散的) time.  .
Take a break.
     So take some breaks while doing your homework. Sitting for too long without stretching or relaxing will make you less productive than if you stop every so often. Taking a 15-minute break every hour is a good idea for most people.
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If you don't finish your homework during school, think about how much you have left and what else is going on that day, and then budget your time. Most high-school students have between 1 and 3 hours of homework a night. If it’s a heavy homework day and it seems like you’ve got an assignment in every subject but gym and lunch, you’ll need to devote more time to homework. It’s a good idea to come up with some kind of homework schedule, especially if you are involved in sports or activities or have an after-school job.

A．And it helps digest important concepts.

B．Once your homework is done, you can check over it if you have extra time.

C．Plan yourself.

D．But the more work you can get done in school, the less you'll have to do that night.

E. Don't be afraid to ask questions about what's expected in your homework.
F. Settle down to homework.
G. Most people's attention spans (跨度) aren't very long.