题目内容：

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。

The last thing you want is a bad grade on a paper that took a lot of hard work and time. 1. To be successful in school, you have to make sure you know what assignments you're supposed to complete. And know exactly how and when you're expected to complete each assignment. So, you need to talk with the teacher. 2.

You don't have to become a person who looks stupid and follows the teacher around. 3. However, you should check in with your teacher every time he or she assigns a project that is new or unfamiliar.

You should also communicate with your teacher if you receive a poor grade unexpectedly. Teachers are humans, and they make mistakes. 4. Be polite. Your teacher will explain (and maybe appreciate the opportunity to fix any potential mistakes).

5. On test view day, pay attention and ask if there are any themes or patterns that are covered during the test period. Ask the teacher to explain any terms or exercises that aren't absolutely clear to you.

A. What a nightmare(噩梦)!

B. But when should you talk to a teacher?

C. If the teacher provides an email address, use if often!

D. Don’t be a pest, and don't call your teacher after dinnertime.

E. You don't have to speak to the teacher at the end of every class.

F. If you don't understand why your grade is low, go ask!

G. You should also ask questions any time a big test day is approaching.