1.They assumed as a matter of course that the professor would come to give lecture to the students.
他们想当然的认为教授会来给学生们作讲座。
2.Schoolmate s are hearing teacher give lecture conscientiously.
同学们正在认真听老师讲课
3.I was invited to give lecture at RenminUniversity yesterday.
昨天我被邀请去人民大学讲座。
4.00pm - Realize that I have to give lecture in half an hour.
想到不得不做半个小时的讲课。