1. The general success of the scientific endeavor _______ that its products must be valid.
| Asuggests
| Bis suggested
| C suggested
| D was suggested
|
2. Philosophers of science ________ it useful to refer to the work of Karl Popper and his principle of falsifiability to provide an operational definition of what counts as science.
| A had found
| B found
| C was found
| D have found
|
3. In 1968 Popper ________ that only those ideas that are potentially falsifiable are scientific ideas.
| A had suggested
| B has suggested
| C suggested
| D was suggesting
|
4. Now the scientists ___________ experiments in the field of quantum physics.
| A is doing
| B are doing
| C do
| D does
|
5. The seminars were extremely interesting and it was obvious that all the speakers ___________ their material very thoroughly.
| Ahad prepared
| B was prepared
| C have prepared
| Dwere prepared
|
6. Scientists __________ simply not ready to embrace a notion so contrary to the traditional teachings of their discipline.
7. They _______ hard all morning, so they were tired.
| A had been studying
| B were studying
| C studied
| D were studied
|
8. We __________ our project at 9 o'clock yesterday.
| A had done
| Bwere doing
| C was doing
| D are doing
|
9. Tim __________ his experiments when his co-workers came to the laboratory.
| A had finished
| B finished
| Cwas finished
| D had been finishing
|
10. Jason ______ about his mathematical problem for an hour before he solved it.
| A thought
| B had thought
| C had been thinking
| Dwas thinking
|
