The teacher asked Lucy _____.
27. The development of science and technology must benefit people _____ harm them.
26. — Ring me at six tomorrow morning, will you? — Why that early?
25. Mike _______ have known the solutions to this problem, or he would have told us.
24. He apologized for his mistake, saying that he ___________no offence.
23. He was rejected for the job vacancy because he couldn’t be ______even for the interview.