DECIDE IF THE QUESTION REQUIRES KNOWLEDGE OF VOCABULARY OR GRAMMARI...

1. Decide if the question requires knowledge of vocabulary or grammarIf all or some of the choices are the same part of speech, you must select the correct vocabulary item. On the other hand, if you are asked to choose between different forms of the same word, you must select the grammatical form.E.g 1. Everyone should have periodic eye examination to make sure any problems are quickly ………A. produced B. responded C. discovered D. preparedE.g 2. Everyone should have periodic eye examination to make sure any problems are quickly ………A. discovering B. discover C. discovered D. to discoverIn example 1 , you must choose the word that is appropriate in the context of the sentence. A medical problem must bediscovered quickly so that it can be treated.In example 2, you must select the correct grammatical form of the word. The verb should be passive. The past participle discovered completes the passive construction- problems are quickly discovered.