I think ________ good knowledge of English is ________ great help when you are traveling around the world.
| A．不填;a | B．a; a | C．a; the | D．a; 不填 |
Home-working opportunities and ______ working hours are top concerns for the working mothers.
| A．accessible | B．reliable | C．changeable | D．flexible |
Personal relationships ______ over years may be lost when we move houses.
| A．building up | B．built up | C．having built up | D．to be built up |
Someone in the crowd called out his name, but he couldn’t see ______.
| A．whose | B．who | C．where | D．which |
Sales of their new video has ______ one million dollars this year.
| A．got over | B．set up | C．brought about | D．broken through |
Their talks failed to reach any agreement and ______ now seems little hope of a settlement.
| A．it | B．that | C．there | D．what |