It’s hard to avoid mistakes. _____ we realize our mistakes and do our best to correct them, that’s all right.
| A．As if | B．As long as | C．Even if | D．In order that |
. Don’t be discouraged. ______things as they are and you will enjoy every day of your life.
| A．Taking | B．To take | C．Take | D．Taken |
Please do remember that if you fail, make ______failure a stepping stone to ______success.
| A．a : / | B．the : a | C．/ ; the | D．/ : / |
---I feel terrible ,but I’ve just broken your ashtray.
---_________, for I had meant to change it.
| A．Go head | B．No problem |
| C．it’s nothing to get upset about | D．I’ll look into it immediately |
The great contributions he made______our country is_______worth remembering.
| A．to, well | B．of, well | C．to, very | D．for, very |
The theory _____ by Einstein was later to prove true, but at that time few people could accept it .
| A．put out | B．put together | C．put aside | D．put forward |