1 . 阅读下面句子，从所给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。

A. obsessing over               B. on behalf of               C. made sense        D. boils down to sth.        E. die out F. were wiped out               G. was to blame

1. Mr. Johnson delivered an inspring speech _________those who were involved in voluntary work.
2. What he said _________ when it comes to buying the most up-to-date version.
3. The boy was so addicted to online world that he was always_________ his equipment he got in computer games.
4. Whole villages _________ by the forest fire.
5. In the end, what it all _________ is money, or the lack of it.

2 . 如果有必要的话，我将代表我们学校出席这次会议。
________ ________, I’ll attend the meeting _________ ___________ of our school.

3 . 李华将代表我校去参加“讲好三明故事”比赛。
________ ________ ________ our school, Li Hua will participate in the speech contest of Stories of Sanming Retold in English.