根据下列各句句意和空白之后的汉语提示词，在答题卡指定区域的横线上写出对应单词的正确形式，每空只写一词。
66. The teacher tells us the harder we work, the _____(幸福) we feel.
67. All things ______ (考虑), I think we ought to give the job to George.
68. Since no one is ______ (反对) it, we’ll adopt the proposal.
69. If only I had _______ (听) to your advice! But I didn’t.
70. It is dark and cold, so it is no good ______(等) here. Let’s go home.
