He is really nervous. He ______back and forth all the night waiting for the results.
| A．has been walking | B．had walked |
| C．walked | D．is walking |
Their plan was ____. With it we had little trouble in finishing the work.
| A．success | B．succeed | C．a success | D．a successful |
When we heard the gun fire, we all stood still and shook with _______.
| A．fear | B．a fear | C．fears | D．the fear |
The room ______ white last year is my study.
| A．to be painted | B．being painted | C．painted | D．having been painted |
---_______ leave at the end of this month.
--- I don’t think you should do that until ____ another job.
| A．I’m going to; you’d found | B．I’m going to; you’ve found |
| C．I’ll; you’ll find | D．I’ll; you’d find |
Is it a wonder that little cells can store much energy?
| A．so; so | B．so; such | C．such; such | D．such; so |