--- How does your sister learn Russian, Mike?---She learns it _______ listening to the tapes.
.---Mr. Green, what’s your job? ---______. I’m in No. 1 Middle School.
This is ______ friend. ______ name is Daming.
---_____? ---It’s cool.
There isn’t ______ milk in the glass.
---Why are you standing, Tony? ---I can’t see the blackboard. A tall boy is ______ me.