【单选题】I think there will ________ 50 people at tomorrow’s party.
【单选题】I think there will be______ people and ______ pollution in the future.
【单选题】—— Do you think there will be robots in school? —— .
【单选题】I think there will be more in big cities.
【单选题】I think there will be more tall buildings ____ 10 years.