Many people have come to realize that they should go on __________ balanced diet and make __________ room in their day for exercise.
| A．a; 不填 | B．the; a | C．the; the | D．不填; a |
Little ______ that we were watching his every move，so he seemed to be going his own way in this business.
| A．did he know | B．he didn't know | C．didn't he know | D．he knew |
When the woman was told that her husband had a car accident, her mind _____.
| A．ended up | B．made sense | C．blocked out | D．went blank |
Color-blind people often find it difficult to _____ between blue and green.
| A．compare | B．separate | C．distinguish | D．divide |
Scientists say it may be five or six years ______ it is possible to test this medicine on human patients.
| A．before | B．after | C． since | D．when |
If you commit a crime, you will ____ punishment.
| A．desire | B．deserve | C．demand | D．desert |