Evidence has been piled up ________ drinking water after getting up in the morning contributes to one's health.
| A．what | B．which |
| C．if | D．that |
How did it______ that humans speak so many different languages?
| A．come out | B．come off | C．come about | D．come round |
Eric was well prepared for the computer test so that he could be positive about passing it on his first________.
| A．intention | B．attempt | C．purpose | D．desire |
If we are all willing to make____with each other_____when we are in dispute，quarrels and conflicts will be avoided and we will surely live in peace.
| A．acquaintance | B．adjustment | C．contact | D．compromise |
He was _____ of looking down upon the disabled person in pulic，but he turned a deaf to it.
| A．condemned | B．charged | C．accused | D．blamed |
Children in school are____into different levels of grades，according to how much they know.
| A．combined | B．classified | C．listed | D．clarified |