Fill in the blank with the most appropriate options.
When he ____ home, I ____ him the book.
A) came/shall show
B) comes/showed
C) has come/has shown
D) came/showed
E) was coming/shall show

Hint: This question is about Verbs. Verbs are the words used to describe some action. Not only that, verbs also tell us about the tense of the sentence. While working with the verbs, always remember that in a single sentence, only one form of verbs should be used to make the sentence easily understood and logically coherent.

Complete answer:
The subject of the question demands both the verbs to be of the same tense. Keeping that in mind, we can answer the question as follows:
Option (A) came/shall show- This is incorrect because both the verbs are of different tenses making the sentence incoherent. “came” is past tense and “shall show” is future tense.
Option (B) comes/showed- This is incorrect because both the verbs are of different tenses making the sentence incoherent. “comes” is present and “showed” is past.
Option (C) has come/has shown- This is incorrect because both the verbs are of different tenses making the sentence incoherent. “has come” is present and “has shown” is past.
Option (D) came/showed-This is correct because both the verbs are past and properly explained the completion of both the activities.
Option (E) was coming/shall show- This is incorrect because both the verbs are of different tenses making the sentence incoherent. “was coming” is past tense and “shall show” is future tense.

Hence the correct answer is option ‘D’.

Note: Tips to use when working with verbs:
- Always understand the relationship between the subject and the tense of the sentence. Also take note of the context of the sentence. This will help you in choosing the proper forms for verbs.
- Read the whole sentence properly to identify the required elements to use proper forms of verbs like tense of the sentence, action perceived, etc. This will help you understand the meaning of the given sentence.
- Always remember that verbs are not just actions denoting words, but they define the whole structure of the sentence, and hence it must be worked with accordingly.