I forgot to take the map. So I had difficulty ______the way. We had to ask the policeman for help.
------How is the medicine for your mother?------ It ________. My mother is much better now.
------Could you please tell me how to improve my spoken English?------ Certainly,I ________.
You can ask him again if you like, but it won’t make any ________ — he’ll still say no.
My parents _________ TV from 9:00 to 10:00 last night.
Unit Six is ________ most difficult lesson, but it isn’t ________ most difficult one in this book.