. It is important to know exactly the message ________ and ________.
| A．you want to send it to people; that you try to get them to do |
| B．sent to people; what do they want to do |
| C．you want to send; which you want people to know |
| D．you want to send to people; what you are trying to get them to do |
Mr. Duncan raised an unnecessary question he then failed to find an answer.
| A．to which | B．for which | C．with which | D．by which |
____________caused the accident is still a mystery.
| A．How | B．What | C．That | D．Where |
__from Adelaide to Darwin and you’ll observe some of Australia’s most beautiful landscapes.
| A．Traveling | B．To travel | C．Traveled | D．Travel |
It is in the year of 2010 a severe drought hits Yunnan province.
| A．until | B．that | C．before | D．when |
The sale usually takes place outside the house ，with the audience on benches，______chairs or boxes。
| A．having seated | B．to seat | C．seated | D．seating |