时间地点介词的运用 — 英语词汇题
题目
选词填空，从括号中选择正确的介词（in / on / at）填入空格：Liu Tao's class will have a get-together（班级聚会）___ the 30th of December. It begins ___ nine o'clock ___ the morning. They sing and dance first, and then have lunch ___ noon. The party ends ___ four o'clock ___ the afternoon.