In early 2020, a serious disease called COVID-19 broke out and quickly spread around the world. _________ people got infected（感染）and many lost their lives. Doctors and nurses worked day and night, trying their best _________ sick people. Dr. Zhong Nanshan is over 80 years old, _________ he still worked hard on the frontline. He helped us fight _________ the disease. He is _________ brave and hard-working that he won people’s respect and became one of the _________ doctors in China. Many doctors and nurses like him are considered heroes.

Heroes came from ordinary people, too. At that time, most of the people _________ at home but some of them wanted to go out and help. Some helped in hospitals as volunteers. Some drove on the roads all day delivering things people needed. _________ worked online to help people as well. They helped people around them without _________ for anything in return.

During __________ hard time, all Chinese people united and worked together for a better future. With the help of all these heroes, China is full of hope and happiness.

Once, a lion, the king of the jungle, he heard someone crying for help. A little mouse was stuck between the rocks and couldn’t get out.The lion _________ one of the rocks with his huge paw and caught the little mouse.

“Thank you so much, King!” said the little mouse. “I shall _________ forget it! And who knows, I may be able to do you a good turn one day!” The lion was so _________ the idea of the mouse being able to help him that he lifted his paw and let him go.

Some time later, a few hunters caught the lion with a huge _________, and waited for a wagon （马车） to take him to the zoo.

Just then the little mouse _________. On seeing the lion, he ran up to him and started to _________ the net with its teeth.With hard work, the lion was _________.   “Was I not right? “ said the little mouse, being very _________ to help the lion.

As we can see, small acts of _________ will be rewarded greatly, so don’t hesitate （犹豫） to give a __________ to someone in need.