It was the truth that the black reached a stage_______ they had almost no rights at all in the past.
| A．when | B．where | C．which | D．that |
The news about the terrible flood there greatly discouraged ______ there for a sight-seeing.
| A．us from going | B．us to go | C．our going | D．our to go |
______ all the possibilities, I really believe that I’d prefer to make any change now.
| A．Considering | B．Considered | C．To consider | D．Consider |
Nobody could______it when the bull broke into the shop and attacked two customers with its horns. The others just hurried away from it.
| A．make | B．help | C．aid | D．assist |
He appears ______ a long time. He is impatient for my arrival.
| A．to wait | B．to be waiting | C．to have waited | D．to have been waiting |
Every device ______in the plane must be designed and made with great care so as to make sure that nothing goes wrong in operation.
| A．fitted | B．to be fitted | C．fitting | D．being fitted |