The classroom is so dirty that it needs________ badly

Why didn’t you go to Mike’s birthday party yesterday? — Well, I _____but I forget it. [ ]

My brother has been teaching ________ he was 21 years old.

I was not ________by his many arguments ,so finally we agreed to differ.[ ]

(2013·河北普通高中高三质量监测)Lucy has changed a lot since she got her new jobRecently she ________ her work quite well