Preparation

Adverbs in English is a word that describes or modifies an adjective, a verb, another adverb, or maybe a whole sentence. Usually, Adverbs answer the questions such as when, where, how, to what extent, how much, etc. A few examples of Adverbs are:

• The roads in my area are very steep
• The election in Delhi is coming soon
• They participated in the annual function happily
• Yesterday, I went to the market
• We will leave tomorrow for Bhutan

To convert Direct Speech to Indirect one must follow the steps given below:

• Remove quotation marks.

• Use a reporting verb like said or asked.

• Change the tense (if necessary). 

Example:
Direct: Rohit said, “I will go now.”
Indirect: Rohit said that he would go then.

Find below some commonly asked informal letter topics:

• Write a letter inviting your friend to your birthday party
• Write a letter to your parents thanking them for the gift
• Write a letter to your sibling telling them about a new experience
• Write a letter to your cousin telling them about the new city you visited
• Write a letter thanking for a gift you received
• Write a letter to your friend
• Write a letter to your grandparents
• Write a letter recounting your recent trip/ experience
• Write a letter describing your new hobby

An informal letter usually starts with a casual and informal greeting, such as "Hi!", "Dear (Name of the recipient)", etc. The greeting is followed by a casual and personal touch. This can include asking about the recipient's well-being or briefly wishing them well. Unlike the formal letters, there is no set structure of the letter's body.

An informal letter is a personal letter written to your near and dears. The tone of the letter is casual, conversational, and informal. Informal letters are usually written to one's family, close friends, acquantainces, etc. 

Find below ten examples of articles:

1. I saw a cat in the balcony.
2. She wants to buy a house.
3. Can I have a bottle of juice, please?
4. He is an engineering at some big tech firm.
5. We had an antique vase in our living room.
6. I had an icecream for dinner.
7. The sun rises in the east.
8. She went to the store by the ocean.
9. The weather is gloomy today.
10. She was a quiet girl, sitting under an umbrella by the beach.

In English grammar, articles are words to come before a noun and indicate whether the noun is specific or general. The definite article (the) is used while talking about a specific noun. Whereas, indefinite articles (a, an) are used for general nouns or a noun whose indentity remains unknown.

For such kinds of sentences, Who will be converted to Whom and vice versa for making active to passive voice. Here, you is the subject and whom is the object.

Hence, the correct answer will be "Who has been called by you?" 

Passive voice is a type of sentence in which the subject receives the action instead of becoming the doer. Here, the focus will be on the object, and there will be a little focus on the subject or doer. I.e. A mango was eaten by Ram. In this sentence, the emphasis is on Mango instead of Ram. 

The passive voice writing style is suitable for formal writing, scientific reports or any such situation where the subject is less important than the object, like the experiment was conducted. It highlights the action or result. In such style of writing object is doer instead of subject.