Is there anything wrong with these words?

First sentence

1, the slogan of the hospital: I wish you no disease, I would rather be infected by medicine. The original words are "I'd rather be infected by drugs on the shelves, and I hope there is no disease in the world."

2. Prison slogan: Thank you for coming. Welcome to visit again. Prison is a place for people to turn over a new leaf, not a vegetable market. How can you welcome to come again?

Yesterday was Xiaoming 14' s birthday. Adults don't say his birthday until his birthday. Xiao Ming 14 years old is just a child, so it can't be called a birthday.

4. The teacher said to Xiaohua: This truth is too simple for everyone to understand. Why can't you? In other words, everyone knows the truth. Why not? This means talking about flowers, not people.