Correct the given sentence gramatically.

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

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.
The quality of being particularly noticeable

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".
He must (being) overwhelmed with the responsibility.

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 (starts walks) without responding.

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

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Get up on the wrong side of the bed

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Dissension

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Bifurcate

In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Inhibitor