Identify the segment in the sentence which contains grammatical error.
The number of students who appeared at the written examination increase every year
Select the most appropriate option to substitute the underlined segment in the given sentence:
I couldn't got some sleep because the people in the next room were talking very loudly.
Select the most appropriate option to substitute the underlined segment in the given sentence:
I enjoy to watch a good detective.
Our PM is received with open arms wherever he goes.
(Choose the correct meaning of the underlined idiom )