Roads in this mountain area used to be_______; people found it hard to travel here.
What the boy ____ make his friends happy.
----Where is Mary? ----At ____.
----Where ____ the dictionary? I can't see it anywhere. ----I ____ it right here. But now it's missing.
Five apples are not enough for them, they need ____.
----Would you please lend me the dictionary?---- ____.