表达计划与意愿：I'm going to... — 英语填空题
题目
用 be going to 结构改写下列句子，每空一词。\n1. I will visit my grandparents this summer. → I ___ ___ ___ visit my grandparents this summer.\n2. She will swim in the sea. → She ___ ___ ___ swim in the sea.\n3. They will play football tomorrow. → They ___ ___ ___ play football tomorrow.