Mark was a student at this university from 2006 to 2011,________he studied very hard and was made Chairman of the Students’ Union.
94. The teacher demanded that he _____ in his homework before class.
93. You can _____ yourself _____ an opinion freely at the class meeting.
92. Our football team _____ theirs _____ two scores.
91. He could not _____ his dislike for that man.
90. Warner announced that the radio & TV communication had been restored. The underlined word means _____.