She won a Nobel Prize for her scientific ______.
| A．interests | B．achievements |
| C．behavior | D．observation |
There is a system ________the waste is disposed of using the principles of ecology.
| A．which | B．where | C．that | D．at which |
.Only when your identity has been checked ________.
| A．you are allowed in |
| B．you will be allowed in |
| C．will you allow in |
| D．will you be allowed in |
The Southern States wanted to ______ the Union, so the American Civil War ______.
| A．get away with; broke up |
| B．get away from; broke up |
| C．break away from; broke out |
| D．break away from; was broken out |
I had not been asked to the party, so I felt ______ and a bit hurt.
| A．left out | B．left behind | C．left alone | D．left off |
---But why ? He simply ignored my words.
---He couldn’t have heard you. Look, he’s ________in the book.
| A．interested | B．covered | C．absorbed | D．taken |