Here are Jennifer’s weekly activities. Monday, go to the park. Tuesday, read a book. Wednesday, walk the dog. Thursday, play football. Friday, music lesson. Saturday, go swimming. Sunday, play on the computer. Today, she walked the dog. What day is it today?
The question is asking us which day Jennifer walks the dog. Jennifer walks the dog on Wednesdays. So if Jennifer is walking the dog today, today, it is Wednesday.