Ⅰ.单项填空
1.Tomorrow is Sunday and he has a day off， so he is to attend our party.
A.probable B.possible
C.likely D.possibility
解析：根据前面的条件he has a day off可知他有时间，因此“可能参加我们的宴会”，只有likely前面的主语可以是人，而A、B选项的主语都不能是人。选项D为名词，不能放在此处。
答案：C
2.Those students who fell behind studied hard to for the missed classes.
A.keep up B.take up
C.catch up D.make up
解析：句意：那些落后的学生努力学习以弥补落下的课程。keep up“保持较好或较高的状态”；take up “占据空间，从事……，拿起”；catch up“赶上，把……缠住”；make up “弥补，占……，构成，化妆，编造”。根据句意可知选D。
答案：D
3.He came home after midnight， and ， he was drunk.That made his parents very angry.
A.what is more B.on the other hand
