Question

Fill in the blank with the appropriate simple future tense:
S: Do you know what to buy for your sister for her birthday?
T: Yes. I _______ her a book on hip hop music. (buy)
 a. will have bought
b. am going to buy
c. will be buying
d. will not be buying

Answer 1

Hint: The student should read the sentence carefully to understand when the event is supposed to be taking place. Then the options should be carefully distinguished to find out whether they are correct or not.

Complete step by step answer:
Simple future tense - Describing the tense which describes a future action. In English, this uses forms of will, shall, or be going to.
Let us analyze the options given to us in this question -
Option (a.), 'will have bought', refers to ‘future perfect tense’.
Therefore, option (a.) is incorrect as the question requires us to use simple future tense.
Option (b.), ‘am going to buy', refers to ‘simple future tense’.
Therefore, option (b.) is correct as a simple future tense form for the first person singular can be formed by - am + going to + buy (base form of the verb).
Option (c.), ‘will be buying', refers to ‘future continuous tense’.
Therefore, option (c.) is incorrect as the question requires us to use simple future tense.
Option (d.), ‘will not be buying', refers to ‘future continuous tense’ in negative form.
Therefore, option (d.) is incorrect as the question requires us to use simple future tense.

Note:
In this question, it will be helpful for the student to recall the concept of tense. Tense is a grammatical category of verbs used to express distinctions of time. There are three tenses - past, present, and future.