Simon has gone abroad to have ____________ European tour.— Oh, really? It must be ____________ unusual trip for him.

Thanks _____ taking care of my little dog.[ ]

If (如果) he isn’t at school. Please call me _______ 453-7868. [ ]

The film was_____ interesting _____ everyone would watch it. [ ]

Della likes dancing, but doesn’t like swimming.. —-_____.