Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Change in Exclamatory Sentence:

If the direct command ends with an exclamation mark, we change this to a full stop in the indirect command. We use the reporting verbs exclaimed, praised, cried out, applauded, regretted, wished, desired etc. With exclaimed we generally use an expressions for feelings such as exclaimed with fear or joy etc.We also use the conjunction that to introduce the reported sentence and change to an appropriate past tense.

• "Go away!" said Raveena. (Direct Command)
• Raveena told me to go away.  (Indirect Command)

In the question : -

They said , " How ! Happy we are here ! " .

The Indirect speech of the above sentence is :

They exclaimed with joy that they were very happy there .

While converting into Indirect speech , firstly how shows happiness or joy so we use exclaimed with joy and then the we pronoun converts into they according to first person , then the simple present changes into simple past means are is converted into were , then here converts into there .

Thus , the Correct Option is C , which is They exclaimed with joy that they were very happy there .

Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Change in Exclamatory Sentence:

If the direct command ends with an exclamation mark, we change this to a full stop in the indirect command. We use the reporting verbs exclaimed, praised, cried out, applauded, regretted, wished, desired etc. With exclaimed we generally use an expressions for feelings such as exclaimed with fearor joy etc.We also use the conjunction that to introduce the reported sentence and change to an appropriate past tense.

• "Go away!" said Raveena. (Direct Command)
• Raveena told me to go away.  (Indirect Command)

In the question : -

The boy said, ‘Hurrah! We have won the match.’

The Indirect speech of the above sentence is :

The boy exclaimed with joy that they had won the match.

While converting into Indirect speech , firstly hurrah shows happiness so we use exclaimed with joy and then the we pronoun converts into they , then the present perfect changes into past perfect means have won is converted into had won , then the objective part the match .

Thus , the Correct Option is B , which is The boy exclaimed with joy that they had won the match.

Direct speech : - Direct speech is used to report or rather repeat the words spoken by the speaker or writer in the way it is told by the speaker .

Indirect speech : - Indirect speech is the way in which you convey what someone said to another person, not necessarily using the exact words of the speaker.

Change in Exclamatory Sentence:

If the direct command ends with an exclamation mark, we change this to a full stop in the indirect command. We use the reporting verbs exclaimed, praised, cried out, applauded, regretted, wished, desired etc. With exclaimed we generally use an expressions for feelings such as exclaimed with fearor joy etc.We also use the conjunction that to introduce the reported sentence and change to an appropriate past tense.

• "Go away!" said Raveena. (Direct Command)
• Raveena told me to go away.  (Indirect Command)

In the question : -

The Emperor said, ‘Alas! Our foes are too strong!’

The Indirect speech of the above sentence is :

The Emperor exclaimed with sorrow that their foes were too strong.

While converting into Indirect speech , firstly alas shows sorrow so we use exclaimed with sorrow and then the our pronoun converts into their , then the simple past changes into simple present means were is converted into are , then the objective part too strong .

Thus , the Correct Option is D , which is The Emperor exclaimed with sorrow that their foes were too strong.