The element radium, ______ in the chemistry lab, gave off a blue light.
| A．discovering | B．to be discovered | C．to discover | D．discovered |
The professor said he could talk on _____ interested the audience.
| A．any topic | B．which topic |
| C．whichever topic | D．the topic he thought it |
It _____ quite a few years _____ the accused was declared innocent and set
free.
| A．was; since | B．is; that | C．will be; when | D．was; before |
We must remember that _____fashion is not the most important thing in ______ life.
| A．/; the | B．/; / | C．the; / | D．the; the |
"_____ your meeting is!" he offered them his sincere congratulations.
| A．How a great success | B．What a great success |
| C．How great success | D．What great success |
---Imaginationimportant in science, and it helps us dream up our future.
---You are definitely right. If only something allow me to see insects and spiders magnified without getting close to them.
| A．was; would | B．is; will | C．will be; can | D．is ;could |