For the following questions answer them individually
The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
The child was irritable / because she had not / soundly slept / the previous night.
Select the most appropriate option that can substitute the underlined segment in the given sentence.
She has checked everything she needs before started work.
Select the most appropriate synonym of the underlined word in the given sentence.
Pankaj always tries his best to uphold the reputation of his institution.
Select the most appropriate idiom for the underlined segment in the given sentence.
I took a quick trip to my cousin’s house before going on vacation to Africa.