—— I’m sorry the traffic is so heavy. —— Does that _____ why you are so late?
. —I must thank you for taking the trouble to look after my sick mother. —_______.
. The teacher had the students __________ all the words they didn’t know.
. . Did you notice the little boy __________ away?
. The work should be given to ________ you think can finish it ahead of time.
. . His family, which _______ rather a large one, ______very fond of their old house.