Pick out the correct sentence from the following sentences.

Identify the erroneous part of the sentence given below:

In the following sentence, find out which part of the sentence has an error and select the appropriate option:

"The patient died / despite he had received / the best medical help / from the hospital staff."

Pick out the part of sentence which has an error. If there is no error mark ‘4’.
A) It wasn't necessary for her
B) To take time of work
C) when her son was ill

Pick out the correct sentence from the following sentences.

Which of the following sentences is correct?

Fill in the blanks by proper word in the sentence.

'He was frightened ______.'