Explanation

I was grieved at his loss.

The phrase "grieved at" is commonly used to express sadness or sorrow regarding something.

Explanation

In the sentence "I fast in Ramzan," the underlined word is "fast."

Part of Speech:

Fast in this context is used as a verb meaning to abstain from food or drink.

Explanation

The most appropriate option to complete the sentence "Create coherence in an essay by using words" is a transitional

Explanation:

Transitional words and phrases help connect ideas, sentences, and paragraphs in writing

Explanation

The idiom "A bolt from the blue" refers to something that happens suddenly and unexpectedly, 

Explanation

In the sentence "Still water causes disease," the underlined word is "still."

Part of Speech:

Still in this context is used as an adjective to describe the noun "water."

It means that the water is not moving or is calm

Explanation

"By the time he arrives, we will have finished the project."

"Will have" is the correct future perfect tense structure,

Indicating that the action of finishing the project will be completed before a specified future time (when he arrives).

Explanation

The correct sentence is: She does not like ice cream.

Correct Structure:

Subject (She) + does (auxiliary verb) + not (negation) + like (base form of the verb).

Explanation

The correct sentence is: "Let the mouse be killed." 

This is the correct passive voice form of the imperative sentence "Kill the mouse."

In passive voice, the structure is: "Let + object + be + past participle (killed)."

Explanation

 "Pleased" is the correct past tense verb to match the past tense of "heard."

Explanation

The correct idiom to replace "completely defeated" is: "Root and branch." 

The idiom "root and branch" means to destroy or eliminate something, leaving no part remaining