Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice．
| A．one | B．that | C．the one | D．the other |
Meeting again by chance, Lucy and Amy are delighted tothe friendship where it left out years ago.
| A．break up | B．pick up | C．bring up | D．build up |
All the fellow workers were shocked bynews that Bob was appointeddirector of the factory.
| A．a; the | B．the; / | C．the; the | D．/; / |
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| A．Should | B．Must | C．Could | D．Would |
The explorers failed to find the cave because it was not locatedthey had expected it to be.
| A．which | B．that | C．where | D．what |
Mr. Brown repeated his words to his son, raising his voice a bit, but stillno answer.
| A．received | B．receiving | C．had received | D．to receive |