Fill in the blank with the most appropriate word. I ______ to learn a lot of new words.

The correct answer is: A. am going

The verb “to be going to” is used to express intention or plan. In this case, the speaker is expressing their intention to learn a lot of new words.

The other options are not as appropriate because they do not express intention or plan.

• Option B, “will”, can be used to express intention or plan, but it can also be used to express prediction or certainty. In this case, the speaker is not predicting or stating with certainty that they will learn a lot of new words, they are simply expressing their intention to do so.
• Option C, “will be”, can be used to express future tense, but it can also be used to express possibility or probability. In this case, the speaker is not expressing possibility or probability that they will learn a lot of new words, they are simply expressing their intention to do so.
• Option D, “going”, is the simple present tense form of the verb “to go”. It can be used to express action or movement, but it cannot be used to express intention or plan.