A sentence contains a complete expression or thought stated in a meaningful manner. However, in an incomplete sentence, an essential part of the sentence is missing, which makes it difficult to understand the meaning.
When finding the correct answer to fill the incomplete sentences, you will have to consider the correct grammar of the sentences. Identify the subject, verb and object of the sentences, think of the grammar rules such as singular and plural, countable and uncountable words, adjectives and adverbs. We have over 1,000 TOEFL questions for you to practice. Try to do at least 10 TOEFL tests per day. If you don't get the total score of 100%, do the same test few days later. It's not rocket science, practice makes you perfect.