English Grammar and Usage

It refers to a situation wherein one can enjoy two different opportunities.

To make the first attempt to become friends with someone.

Bbehind closed doors In secret, privately

Make hay while the sun shines means to take advantage of favourable circumstances.

The original sentence is in the active voice. Converting it to passive voice while maintaining the meaning results in 'It is time for the bell to be rung'.

An adjunct is an optional part of a sentence that provides extra information, such as time, place, or manner. 'In the hospital' specifies the location of the action.

An adjunct provides extra information. The phrase 'to clarify their doubts' explains the purpose or reason for the action, functioning as an adverbial adjunct.

The verb phrase indicates the action or state. 'Has written' is the present perfect tense verb phrase showing the action performed by the subject.

An adjunct provides contextual information. 'During autumn' specifies the time when the action occurs, making it an adjunct of time.

The verb phrase is the action or state. 'Has been suffering' is the present perfect continuous verb phrase describing the state of the subject.

It is a simple past tense, using past form of lose, so we use verb ‘did’. The format of question sentence is V+S+AI.

In passive voice, subject (who) becomes (by whom). In interrogative sentences, verb comes before the subject. Hence, option 4.

In passive voice, subject (who) becomes (by whom). In interrogative sentences, verb comes before the subject. To show the continuity, we use 'being' in the passive voice. Hence, option 2.

Whenever the subject is missing in the passive voice, we provide the same while changing into the active voice. Indefinite pronoun 'someone' is the correct subject supplied. Hence, option 4.

Case of simple present tense. So, the auxiliary required is 'is'. 'Have been' is correct here. Hence, option 1.