____ the police know the killer's identity, they are getting close to catching him.
a single word can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.
______ for two days, Steve managed to finish his report on schedule.
He must have sensed that I ________ him. He suddenly glanced at me and said quietly, "Why are you staring at me like that?"
He is a shy man,___he is not afraid of anything or anyone.
I wasn't able to hide my eagerness when I ________, "What do you wish me to do now?"