--There is no juice in the fridge, _____? --No, we’d better go and buy some.
The teacher is already standing here. Do you know when she ______?
I’m busy now. I ______ to you after school this afternoon.
Eric arrived on time, ______ it was the rush hour.
Someone ______ at the door. Can you open it?
Steven, we should ______ the bus at the next stop.