1\They _ (wait) at the bus stop for some time when Mrs.Black came.

问题描述:

1\They _ (wait) at the bus stop for some time when Mrs.Black came.
2\You've left the door open,Oh,so I have .I and close it.(go)
3\Our new teacher will be here tomorrow,.Oh,I Thought she today.(come)
适当的时态填空,

1.had been waiting
2.will go
3.came