27. That’s the woman one of __________ daughters works as an engineer in the US.
| A．who | B．whom | C．her | D．Whose |
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 |
The company saw it as part of its social ______ to provide education for its workers.
| A．reward | B．request | C．research | D．responsibility |
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 bought a new building ______ top is different from others around.
| A．what | B．which | C．that | D．whose |