—Jack, this is the third time that you have been late this week．
—Sorry, sir, but I was_____ for 15 minutes on the way here in the traffic jam．
A．held up B．put up C．taken up D．given up
．The day before yesterday John was dismissed because of his _____ attitude towards his job．
A．informal B．casual C．determined D．earnest
—Did you tell Jimmy that we’ve put off the meeting?
—No．He rushed out _____ I could say anything．
A．in case B．after C．before D．unless
．—______ I lock the lab before I go home?
—Don’t bother．I’ll check it myself later．
A．May B．Must C．Can D．Shall
．Interestingly in some parts of the world, women are expected to earn money _____ men work at home and raise their children．
A．but B．though C．because D．while
Leaders of many countries have been trying to _____ what it is that makes China develop so fast in recent years．
A．carry out B．figure out C．watch out D．make out
