1-Brainstorm the possible causes of the below statement (the result): Mandarin becomes the world's most important second language

2- Form a sentence using cause and result verbs ( cause, be caused by, lead to, due to, result from, result in) can I get a help​

You were given an exceptional iq so obviously you made valedictorian to change the tone of the sentence from resentful to complimentary, without changing the central meaning, which word most needs to be replaced? o a. exceptional o b. valedictorian o c. given o d. obviously