五、完成句子:(10分,每小题2分)
66.轮船沉没了,所有的乘客都在船上。
The ship sank with all the passengers _______ ________(在船上).
67.她现在很难受,你本该把这个坏消息告诉她的。
She is very upset now; you ________ _______ ________ her the bad news.
68. 既然我们已经得到这个在重点学校学习的机会,我们就要充分利用它。
Since we have got the chance to learn in a key middle school, we’d better ______ ______ _____ _____ it.