---Let’s back up. Where was I?
---You ___________________about the trip to South Africa.
| A．were talking | B．talked | C．are talking | D．would talk |
According to the air traffic rules, youswitch off your mobile phone before bearding.
| A． | may | B． | can | C． | would | D． | should |
In my view, London's not as expensive in price as Tokyo but Tokyo is______in traffic.
| A．the most organized | B．more organized | C．so organized as | D．as organized as |
The two sportsmen congratulated each otherwinning the match by shaking hands.
| A． | with | B． | on | C． | in | D． | to |
Last night Mr. Crook didn’t come back at the usual time. __________ , he met some friends and stayed out until midnight.
| A．Meanwhile | B．However | C．Instead | D．Yet |
___ the website of the Fire Department in your city, and you will learn a lot about firefighting.
| A．Having searched | B．To search | C．Searching | D．Search |