Here’s the text with the brackets opened using the proper tenses, followed by a summary:
Today is Monday. Mrs. Brown goes shopping every Monday afternoon. Now she is in the supermarket. She is buying some cakes and two white loaves. Her daughter Susan likes cakes. Mr. Brown does not like cakes; he likes fruit: apples, oranges, lemons, and so on. Mr. Brown is not at home now. He is working in the City. Susan is at school. She is having a French class now. Mrs. Brown is walking along the counters. She can buy all they need in the supermarket.
It is Sunday morning. Mrs. Brown is in the kitchen; she is cooking the Sunday dinner. Her husband and children are at home, and they can have dinner in the afternoon. Mr. Brown does not go to the office on Sunday, and he can work in the garden. He grows vegetables and flowers. His flowers are very nice.
Summary:
The first text takes place on a Monday where Mrs. Brown is shopping in the supermarket while her family is engaged in their routines. She buys cakes that her daughter enjoys, while her husband prefers fruit and is working. Meanwhile, Susan is at school attending her French class.
The second text describes a Sunday morning when Mrs. Brown is preparing Sunday dinner in the kitchen, with her family at home. Mr. Brown takes the day off from work to tend to the garden, where he cultivates vegetables and beautiful flowers.