去掉括号内一个字母,将其称为一个新的单词完成句子

问题描述:

去掉括号内一个字母,将其称为一个新的单词完成句子
①it's---the wall(one) ② miss chen has a lovely black---.(coat)
③---you at home yesterday (where) ④my---is black. (chair)

①It's on the wall.
②Miss Chen has a lovely black cat.
③Were you at home yesterday.
④My hair is black.