Some researchers are finding that daydreaming may be important to ______ mental health and it is ______ good means of relaxation.
| A．the; 不填 | B．不填 ; the | C．不填; a | D．不填; 不填 |
Ellen was a painter of birds and of nature, ____, for some reason, had withdrawn from all human society. (2012 .浙江)
| A．which |
| B．who |
| C．where |
| D．whom |
It is the third time that she has won the race, ____ has surprised us all. (2012 .陕西)
| A．that |
| B．where |
| C．which |
| D．what |
The air quality in the city,____ is shown in the report, has improved over the past two months. (2012 .福建)
| A．that |
| B．it |
| C．as |
| D．what |
Mary was much kinder to Jack than she was to the others, ____ , of course, made all the others upset.(2011.北京 )
| A．who |
| B．which |
| C．what |
| D．that |
Ted came for the weekend wearing only some shorts and a T-shirt, ____ is a stupid thing to do in such weather. (2011.大纲全国)
| A．this |
| B．that |
| C．what |
| D．which |