Complete the sentences with the missing antonyms (the words with opposite meanings).

Write one word in each gap.

"The picture is _ _ _ _ _ _ _ u _." — "No, it's ugly!" [ ]

"The square is crowded." — "No, it's _ _ _ _ _ _ e _." [ ]

"The town is _ u _ _ _." — "No, it's busy." [ ]

"The river is clean." — "No, it's _ _ l _ _ _ _ _." [ ]