Helen is much more kind to her youngest child than to the others,___________ of course, make the others unhappy.
| A．who | B．which | C．she | D．that |
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 |
Why didn’t you come to Susan’s birthday party? We you all the evening.
| A．have expected | B．had expected |
| C．are expecting | D．were expecting |