I was deep in thought, so I didn't notice _____.
After the party, I found my necklace _____.
I’ve promised to attend your party and I’ll ______ my word.
第一部分:英语知识运用(共2节,满分30分)第一节:单项填空(共10小题;每小题1分,满分10分)The classroom is so dirty. _________ we clean it?
_____ the news, so far, has been good, there may be days ahead when it is bad.
Although ________ after the Civil War, the American blacks still took no important role in the white Americans except as servants and laborers.