According to the recent research, heavy coffee drinking and heart attack is not necessarily __________ and effect.
| A．reason |
| B．impact |
| C．fact |
| D．cause |
She is a woman of strong ______ and we all believe she will be a good leader.
| A．feelings | B．character |
| C．behavior | D．appearance |
The country has been ______ war with its neighbor for almost ten years.
| A．in | B．on | C．at | D．during |
When the question ______ at the meeting, no one could answer it.
| A．rose | B．arose |
| C．came | D．raised |
The five rings on the Olympic flag ______ the five continents that are joined together in the Olympic Games.
| A．belong to | B．stand for |
| C．take apart | D．pack up |
He has got three brothers, ________ is a doctor.
| A．all of them | B．none of whom |
| C．all of whom | D．both of them |