--Excuse me, I don't think you can smoke here.
---Really sorry. I ______ this is a non-smoking room.
| A．didn't know | B．don't know | C．have no idea | D．haven't known |
A harmonious society is very important , so all the laws must be strictly _________.
| A．watched | B．observed |
| C．carried | D．handled |
The English teacher tells the students to have ______ for different races and appreciate the diversity of other cultures .
| A．mercy | B．sympathy |
| C．respect | D．regret |
______ young in our village are now living _______much more comfortable life than we did.
| A．A ; \ | B．The ; the |
| C．Ａ; a | D．The ; a |
__________ the program , they have to stay there for another two weeks.
| A．Not completing |
| B．Not having completed |
| C．Not completed |
| D．Having not completed |
Either the judge or the lawyers ______ wrong on the case at that moment.
| A．is | B．are | C．were | D．was |