You know that the sentences in english language should have the subject and verb. The most common type in the question about TOEFL STRUCTURE Test is subject and verb: a word may be vacated, either subject or verb or both, or perhaps the word that has the additional subject or verb.
Example 1 :
In the example above You see that there is a verb (verb), but there is no subject. The answer to (C) is the correct answer because it contains a single subject "traffic" and in accordance with the single verb "was". Answer (A), "yesterday", and the answer to (B), "in the morning", is not a subject, hence they are not true. Although the answer (D) could be the subject, it was not true. "Cars" is plural, so the shape does not correspond to a single verb "was".
Example 2 :
In this example, that sentence above, the Engineers as a subject, but not found a verb. Therefore, the answer to (B) is the most appropriate answer. Because "are needed" is a verb. Whereas, the answer to (A), (C) and (D) is not a verb, so it is not the right answer.
Example 3 :
Fitzgerald is the subject of the third person singular. Then, the verbs that follow should also be in the singular. Therefore, the correct answer is (B).
STRATEGY 1
Look at the following chart on the use of the subject and the verb in a sentence which is appropriate.
