1．
以下10个句子，每个句中只有一处错误。每处错误仅涉及一个单词的增加、删除或修改。
(1) This means going back to the place where we left the family sleep in a tree the night before.
(2) Many a scientist have devoted their lives to science.
(3) Ignore the difference between the two research findings will be one of the worst mistakes you make.
(4) In a summary, it’s human activities that lead to the destruction of the environment.
(5) The performance is one of the few failure in his career.
(6) Scientists are convincing of the positive effects of laughter on physical and mental health.
(7) We can often be wrong about each other, so it is an amazed thing that we understand each other as well as we do.
(8) Having used for many years, the bike needs repairing.
(9) Occasions are quite rare where I have the time to spend a day with my kids.
(10) My classmates are away at variously colleges and they are having fun.