—I saw you and Tom in the library just now.—Oh,we____several visitors around the school.
-- Can you come to my dinner party? -- ________.
Could you give me _______ about improving my English?
--Dad, could you tell me _______? -- In half an hour.
--Jack, how about going camping if it_______ tomorrow? -- Sounds great!
We must do something so that there will be _____ pollution in our city.