-- It is often said , “ All roads _________ Rome . ”--- Yes . I’m sure if you work hard , you will be _________ .

People _________ rivers for transportation since the beginning of history.

There _______ less air pollution in the country .

--- I went to see you at 3 o’clock yesterday afternoon, but you weren’t at home. --- Oh, I __________ a film with my parents in a cinema.

 —Where's the cake I made this morning? —We          it, mom. Can you make another one for me?