Writing prompt: Based on the given hints and referring to the picture, write a short essay.
Last Sunday, I went for a picnic in the park with my friends. It started raining in the afternoon. I forgot my umbrella and got wet. I felt cold and had a headache. My friends took me to the hospital. The doctor said I had a fever. He gave me some medicine and told me to go home and rest well.
Writing hints: picnic; rain; umbrella; get wet; hospital; fever; medicine.

Student essay:
Last Sunday, I have a picnic in park with my friends. In that afternoon, It begins raining, but I forget take out umbrella. So, I get wet.

Corrected essay:
Last Sunday, I had a picnic in the park with my friends. In that afternoon, it began raining, but I had forgotten to take my umbrella. So, I got wet.