Parts of the following sentence have been given as options. Select the option that contains an error.

My mother is a honest and well known woman in the society.

Select the option that contains a grammatical error in the underlined portion.

He was always been a grumpy man so I never liked him and avoided his company.

The following sentence has been split into four segments. Identify the segment that contains a grammatical error.

You should / see a oculist; / your eyes look / worse today.

Select the option that contains a grammatical error in the underlined portion. 

When Mrs. Sinha came to see Varanasi in 2019, Nupur has already been teaching there for five years.