Progress so far has been very good, ____, we are sure that the project will be completed on time.
| A．otherwise | B．therefore | C．besides | D．however |
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 |
— A sports meeting is going to ______ next month.
— Oh, that’s wonderful.
| A．organize | B．be organized |
| C．be organizing | D．have been organized |