I ______their method of making the machine .
| A．adopted | B． voted | C． elected | D． commanded |
It was on July 1, 2006 ___ Qinghai-Tibet railway began operation, ____ is a symbolic project in China’s West Development Strategy．
| A．when; that | B．that; when | C．which; when | D．that; which |
It can’t be a（n） _______ that four jewelry stores were robbed in one night．
| A．accident | B．incident | C．chance | D．coincidence |
Now that the forest was destroyed by a big fire, a large ________of trees ______ to be planted on the mountain．
| A．number; has | B．quantity; has | C．amount; have | D．sum; have |
—The contest is so easy, but you fail to pass it．
—I’m sorry it ______ be this way．
| A．need | B．should | C．may | D．would |
They have most carefully the time and money needed to complete the project．
| A．picked out | B．left out | C．figured out | D．taken out |