1．
下列每句各有一处语言错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（
），并在其下面写出该加的词。
删除：把多余的词用（＼划掉）。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：每处错误及其修改均仅限一词。
(1) It was at midnight when we finally got to the valley floor.
(2) He prefers to stay at home rather than going shopping.
(3) While watched TV, I learned the news that the iphone7s had been started selling.
(4) He told me that he have found his book.
(5) Today a number of people is learning English in China.
(6) J.K. Rowling is a writer who name is known all over the world.