After chatting online for along time, Mary looked up, __that it was 11:00 pm, long past her usual bedtime.
Let the dog loose so that it_____have a run.
We all got up early_____we might start at six.
They stopped at Tianjing_____they might visit the TV tower.
She has _____she remembers all the names of the students she has taught.
It is_____ all of us can do it.