1. This concept was not recognized until the 16th century.
a) theory c) notion
b) principle d) method
2. It was obvious that there was a pattern linking these events.
a) unexpected c) indistinct
b) clear d) right
3. The lecturer concluded with a brief review of the main points.
a) started c) finished
b) continued d) added
4. They have decided to launch an investigation.
a) finance c) assist
b) support d) initiate
5. We presume that they will be able to interpret the results correctly.
a) assume c) confirm
b) support d) realize
6. It is essential that you check your research results to make sure they are correct.
a) vital c) main
b) secondary d) ordinary
7. In some instances, there was no improvement, but generally the changes were a success.
a) causes c) tests
b) processes d) cases
8. Wages and inflation are closely linked, in that as one rises or falls so does the other.
a) disconnected c) affected
b) interrelated d) observed
9. The underlying cause of their refusal was lack of funds.
a) immediate c) basic
b) reasonable d) specific
10. The results of the tests verified that our theory was correct.
a) recorded c) discovered
b) explained d) proved