Correct the given sentence gramatically.

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

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

In case of a natural calamity the shortage of essential things must be overcome in a short time

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

One who is able to use both hands

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A person who completely abstains from alcohol

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A child born after the death of father

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Leave no stone unturned

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Donkey's years

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Feather in one's cap

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

Mr. Sen is absent today. He _____ sick