... sentence. Is it a physical action, a mental action, or a state of being? TOEFL STUDY GUIDE PART 3 STRUCTURE AND WRITTEN EXPRESSION Sentence Completion Tips 49 - 50 Sentence Completion Tip ... were", "there was", "it is", and "it was" are examples of no main verb or subject and are classed as expressions. Sentence Completion Tip 50 Strategy: Locate ... cookies can, cans, etc. Countries are singular Structure: Error Identification TIP 53 Seven Common Errors: Error #2 Nouns Singular and plural nouns: Many plural nouns are followed by...