__ has been mentioned above, continued chairman after he took a sip of coffee, ____ the project must be carried out before spring flood comes.
— Are you a teacher? — No, but I ____. I worked in a middle school for three years.
I wonder why you won’t do it as ____. It’s the third time you have done so.
— How are you getting on with your work? — Oh, I’m sorry. Things aren’t going so well as ____.
— Why do you want the book so much? — ____, sir.
— I hate talking with that guy. Look, he is coming. What should I do? — Don’t speak until ____.