Fill in the missing preposition if necessary: at on from in with 1)peter sedov institute last year. 2)he makes english. 3)the children filled a water. 4)boys like to . 5)never laugh anybody. 6)the president . 7)they .petersburg two weeks ago

1)Peter Sedov graduated.FROM the institute last year. 2)He makes progress.IN . English. 3)The children filled a pail.WITH. water. 4)Boys like to climb..IN..mountains. 5)Never laugh AT anybody. 6)The President was.ON.a visit..TO.France. 7)They stayed..IN .St.Petersburg two weeks ago