I_____ a bird________the tree.
--_______ do you go to the movie with your mother? -- I seldom do that.
--_________ useful invention the computer is. --Yes, It helps us a lot.
-- Be careful, _______ you will make mistakes in your exams. --I know that, Mrs. White. One can never be too careful.
We don’t know when the sports meeting ______. When it ______, please tell me .
There are many trees ______ of the road! And ______ of the trees is growing larger and larger.