Verbs : These are words that refer to an action or a state of being. A sentence must have a verb or else it is incomplete.

Linking Verb : Verbs that join the subject and the subject complement in a sentence are called linking verbs.

For example:

The children seem happy.

In the above sentence the verb seem connect the subject the children with the complement happy.

In the Question:-

Dinner ____burnt.(Present)

 In this Question the correct linking verb that can be used is smells as the verb smell compliment  dinner and burnt .In this sentence it is shown that how linking verb smells  explains how dinner smells? Here singular present tense (smells) is used  as sentence is present tense.

Thus, the correct option is B, which is smells.
 

Verbs : - These are words that refer to an action or a state of being. A sentence must have a verb or else it is incomplete. Along with nouns, verbs are the main part of a sentence or phrase, telling a story about what is taking place. In fact, without a verb, full thoughts can’t be properly conveyed, and even the simplest sentences, such as Maria sings, have one. Actually, a verb can be a sentence by itself, with the subject, in most case you, implied, such as, Sing! and Drive!

Example : - She eats chocolate cake on Sundays . Here , eats is a verb as it tells about the action performed by noun or pronoun 

Linking verbs :  - Verbs that join the subject and the subject complement in a sentence are called linking verbs.

Example: look, seem, appear, sound, taste etc.

Example : a. The children seem happy

                  b. You are a singer.

In the above sentences the verbs seem and are link or connect the subject the children and you with the complements happy and singer, respectively.

In the question

1.  The audience __________ silent when the conductor walked on stage. In this sentence , the correct form of verb that can be placed in the blank part is fell as it links or joins the sentence .  They help connect the subject to the predicate. 

2. Dreams ___________ true when we believe in them. In this sentence , the correct form of verb that can be placed in the blank part is come as it links or joins the sentence .  They help connect the subject to the predicate. 

3.  The crowd _________ calm in spite of the imminent threat.   In this sentence , the correct form of verb that can be placed in the blank part is stayed as it links or joins the sentence .  They help connect the subject to the predicate. 

Thus , the Correct Option is B , which is 1. Fell 2. Come 3. Stayed .

Verbs : These are words that refer to an action or a state of being. A sentence must have a verb or else it is incomplete. Along with nouns, verbs are the main part of a sentence or phrase, telling a story about what is taking place. In fact, without a verb, full thoughts can’t be properly conveyed, and even the simplest sentences, such as Maria sings, have one. Actually, a verb can be a sentence by itself, with the subject, in most case you, implied, such as, Sing! and Drive!

Example : - She eats chocolate cake on Sundays . Here , eats is a verb as it tells about the action performed by noun or pronoun 

Linking verbs :  - Verbs that join the subject and the subject complement in a sentence are called linking verbs.

Example: look, seem, appear, sound, taste etc.

Example : a. The children seem happy

                  b. You are a singer.

In the above sentences the verbs seem and are link or connect the subject the children and you with the complements happy and singer, respectively.

In the question

1.  He _______________ red after tripping on the rug. In this sentence , the correct form of verb that can be placed in the blank part is went as it links or joins the sentence .  They help connect the subject to the predicate. 

2.  You ___________ exhausted after studying all night. In this sentence , the correct form of verb that can be placed in the blank part is look as it links or joins the sentence .  They help connect the subject to the predicate. 

Thus , the Correct Option is C , which is 1. Went 2. Look  .