.
_____ you don’t lose heart, I’m sure you can pass the coming examination.
| A．Unless | B．As long as | C．If not | D．Although |
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 |
When and where to go for our holiday _____ yet.
| A．are not decided | B．have not been decided |
| C．is not being decided | D．has not been decided |
He will never tell lies, and it’s against his _______ for he’s such an honest man.
| A．rules | B．regulations | C．patterns | D．principles |
He would have come here on time, but he _____ in the heavy traffic on the way.
| A．caught | B．had caught | C．was caught | D．had been caught |