【单选题】
Youshouldnt_________yourtimelikethat,Bob;youhavetofinishyourschoolworktonight.
【单选题】
若Bob给Alice发送一封邮件,并想让Alice确信邮件是由Bob发出的,则Bob应该选用哪种密钥对邮件加密?
【单选题】
They invited the three of ____, Bob, Joe, and ____.
【判断题】
A: Im Bob. Mike asked me to visit you. B: Nice meeting you, Bob.
【单选题】
Woman: Bob, do you think you can lend me fifty dollars? Bob: Let me see. ____
①
You know I have no money at all.
②
Sorry, I don’t think I have much with me.
③
I don’t think you should do it.
④
Oh, I have quite a lot.
【单选题】
—Howareyou,Bob?—____________Ted.<br/>
【单选题】
Bob [填空] playing games.
【单选题】
Bob runs [填空] fast as Jim.
【单选题】
Bob is one of the [填空] in our school.
【单选题】
---Say,Jane,willyoucomewithmetothegameFriday?---______,Bob,butIpromisedMaryI’dgowithher.