每处错误仅涉及一个单词的增加、删除或修改。
①In addition, sometimes I am very clumsy and drop things or bump into furnitures.
②Pudong Development Zone is no longer that it used to be.
③The capital of Peru is Lima, that is in the north on the coast.
④But monitoring carefully, the snakes proved to be no trouble and all went according to plan.
⑤Would you like to introduce your new published book to us?
⑥They urged that the gym was kept open during the work time.
⑦I came up this book in an old bookstore several days ago.
⑧Mum can't have Peter stay up all night long.
⑨Just accept them for who they are, and give them encouragement to live as rich and full life as you do.
⑩Every time when I returned after an absence, I felt stupid because I was behind the others.
是虚数单位，则
是（ ）
