be going to表示将来计划 — 英语选择题
题目
Sam和他的小组要做一个关于放学后活动的调查。Sam计划：先向30名学生提问，然后写下答案，最后在周五向大家汇报。今天是周三。下列哪句话正确？A. Sam is going to report the results on Friday. B. Sam is going to ask thirty students last week. C. Sam am going to do the survey. D. Sam are going to write the answers.