问答题 花一周时间参加这样的会议将会是浪费时间。(a waste of)

【正确答案】It's a waste of time to spend a week on such a meeting.
【答案解析】(此处,it做形式主语,真正的主语是to spend a week on such a meeting,采用这种形式以避免头重脚轻的现象。)