Never before______ so highly successful in his attempts to forecast the weather accurately on a small scale．
| A．man has been | B．man is | C．has man been | D．will be man |
He finds it hard to keep _____ with the change of society if he stops learning．
| A．company | B．time | C．faith | D．pace |
If you don’t go there, ______．
| A．so will I | B．neither do I | C．so do I | D．neither will I |
She is already 18 years old, but she _____ as if she were still a little girl．
| A．believes | B．behaves |
| C．directs | D．declares |
The time has come ______ we can make extensive use of nuclear energy．
| A．when | B．which | C．since | D．while |
Your performance in the driving test didn't reach the required standard—____, you failed．
| A．in the end | B．after all |
| C．at the same time | D．in other words |