Explanation

If two nouns are joined by preposition, the noun on either side singular and the verb is also singular.

Explanation

• Successful people always Have two things. One determination and second sincerity.
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• in the above sentence, two events happen, so we use "have" in the sentence.. because have is the best choice to keep the meaning of the original sentence
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• While the verb to have has many different meanings, its primary meaning is “to possess, own, hold for use, or contain.”
• Have and has indicated possession in the present tense (describing events that are currently happening).
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• The verb have has the forms: have, has, having, and had.
• The base form of the verb is have.
• The present participle is having.
• The past tense and past participle forms are had.
  

Explanation

The past participle of the verb "bend" is bent.

It is used in perfect tenses, like "She has bent the metal into shape."

Explanation

The word "has" serves as an auxiliary verb in the sentence.

It indicating the present perfect tense of the action "completed."

Explanation

A linking verb is a verb that links the subject to a noun or an adjective to re-identify it or describe it.

We have a linking verb: to appear, to feel, to look, to smell, to sound, and to taste.

Felt is an example of Linking Verb here. 

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Explanation

This is a sentence of Past Indefinite Tense.

Usually first form of verb is used with did.

Go is the first form of verb.

He did not go there. 

Explanation

Explanation

 A hundred rupees is the price of this pen.

"Hundred rupees" refers to a singular amount of money, which is treated as a singular noun.

So the correct verb is "is

Explanation

 China is the largest producer of vegetables in the world.

After China, India is the second largest producer of vegetables in the world.

Explanation

They will have completed their work by tomorrow.

“By” is used as an adverb of time in the future perfect tense.

"They will have completed" is correct.

It indicates that you will have finished something by a certain point in the future.