Please tell common and proper noun

2. Circle the common nouns and underline the proper nouns in these sentences.
a) Mary and I went to the theatre.
b) Tom often drinks coffee without sugar.
c) China is a very big country.
d) David is a dentist. He was born in London.
e) James adopted a cute puppy. He named it Rover.
f) The Nile is the longest river in the world. It flows through Egypt.
g) Peter can speak many languages. He is especially fluent in English and French.
h) Helen is going to Dubai in summer. She has many friends and cousins there.