— How many students are going to the Great Wall?
— ____.
| A．None | B．No one | C．No | D．Not any |
The plan was canceled after someone presented _____ objections to it at the meeting.
| A．operative | B．efficient | C．valid | D．secure |
The thief was caught by the police in the railway station before he was able to _____.
| A．purchase | B．flee | C．flock | D．avoid |
The construction workers completed the bridge three months _____ time and were praised by the local people.
| A．in accordance with | B．in front of | C．ahead of | D．prior to |
A lot of revolutionaries _____ their own lives for the liberation of our country.
| A．devoted | B．sacrificed | C．contributed | D．delivered |
It’s cloudy outside. Please take an umbrella. _______ it rains.
| A．Take it easy | B．Just in case |
| C．It just depends | D．All right |