30．Frank’s marriage to the billionaire’s daughter got him through his hardest time, ________ years later he wondered what he could have done differently 。
| A．therefore | B．and | C．however | D．but |
It was ___that we wanted to stay here for another two days.
| A．such a fine weather | B．such fine weather | C．so fine weather | D．so fine a weather. |
The anti-government army ____the entrance with big stones in order to stop the government army marching in.
| A． stood | B． dug | C．buried | D．blocked. |
They are broading the bridge to _____the flow of traffic.
| A．put off | B．speed up | C．turn on | D．work out |
With a local guide _____the way,they had no trouble _____out of the forest.
| A．leading；walk | B．led；walk | C．leading；walking | D．leads；walking |
Being afraid of making mistakes,the little boy ____answer his teacher’s question.
| A．does dare | B．doesn’t dare to | C．daren’t | D．not dare to |