Identify the unclear pronoun references in the following paragraph. Where necessary, rewrite the sentences so that all pronoun references are clear: -

The Liberation War of Bangladesh is a memorable event in our national life. She achieved her independence through sacrifice and bloodshed. It is the birthright of a man. On the night of March 25, 1971, the Pakistan army fell upon the unarmed sleeping Bangalees. But we were not cowards. They built up strong resistance against them. They fought with courage for long nine months. After nine months' bloody war and sacrifice of the freedom fighters, the red sun of independence rose in our soil on the $16^{\text {th }}$ December, 1971 . Now we remember them with great respect.

Here is a text with five unclear pronoun references. Re-write the text making all the pronoun references clear. Underline the areas where you make any changes: —

Robin hates people who are mean to animals. Last afternoon, as he was walking home from work, he saw some boys throwing stones at an old lame dog. Immediately, he rushed to help the animal. "Stop it!" he shouted as he ran towards the unruly boys, "Leave him alone!" Startled by the big man's shouts, they ran away. One of them jeered at him while running away. Robin, however, was totally unmoved by the jeering. He was happy that he could save it. Robin has always felt some affection for animals. Once he even went to the police station to complain against a neighbour who threw a cat out of the window. Instead of taking any action, they laughed at him and advised him not to worry about such 'petty' matters.

Identify the unclear pronoun references in the following text and rewrite the sentences so that all pronoun references are clear: -

Do you know the importance of trees? They are our best friends. Our existence on earth will be at stake without it. We inhale oxygen which trees produce. Again, we exhale carbon dioxide which it absorb. Besides, we get food from trees and firewood to cook it. But some irresponsible people cut down trees indiscriminately. It should be brought to light. Furthermore, one should take keen interest to plant more trees so that we can live comfortably on earth.