Your writing task
Write 70–110 words. Your friend writes: 'Would you like to come to my birthday picnic on Sunday at one? We are meeting at the lake gate. Can you bring something to eat? Tell me if you need directions.' Reply accepting the invitation, say what you will bring and ask one practical question.
Writing focus
Reply to the questions in the original message. Copying its invitation without giving your own answer does not complete the task.