Why does social media get risky according to the author?

• A、The users’ social connection is lost.

• B、The users’ messages may be ignored.

• C、The users ' real emotion may be hidden.

• D、The users' voices can hardy be heard.

There_____no one to help me at this moment, I need to handle the work all by myself.

• A、 be

• B、 being

• C、to be 

• D、been

新學期伊始，你們班準備組織-場迎新晚會，讓同學們熟悉起來。你(Li Yuan)打算邀請外教

( Tim)來參加迎新晚會。請給他寫-封e-mail,內(nèi)容包括:

(1)邀請他參加迎新晚會;

(2)介紹迎新晚會的一些活動安排;

(3)希望他能夠做個簡短發(fā)言;

(4)期待他的到來。