밑줄 친 ①~⑤ 중 어법상 바르지 않은 것을 고르세요.
Next weekend, I ① will go on a picnic with my family. We ② are going to bring our lunch. So I ③ am making sandwiches with my sister right now. My dad ④ is packing our picnic basket. We ⑤ will having a great time together.