Correct the given sentence gramatically.

Shreya, who she is my best friend, is a singer.

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which bestexpresses the same sentence in Passive/Active voice.
 

The movie critic wrote a sarcastic review.

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

Such are the strata which we

X-species as those now living in the Mediterranean
Y-meet with in the south of Sicily, filled
Z-with shells for the most part of the same

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

They had seen enough of the

X-them to come a step farther
Y-desert already, and no number
Z-of knives would have tempted

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

A substance easily evaporated at normal temperatures

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

The state or quality of being holy

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

Someone must (being) killed.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

She and Dad would (has had loved) Amit.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Leave no stone unturned