—What do you think of Billy, the shortest boy in our class? —I think he is _________ honest boy.
She wants three ________ and some ________.
The earth(地球) is our home, and we must _____ it clean.
–What would you like to drink? --______, please.
The children are playing a game _______ "hide and seek".
Today is Halloween. I ____ as a ghost, and of course I _____ a special costume.