What do the police think about the murder?— I’m not sure. But I want anyone who ______ the clue to contact the police actively.

It is only in the last sixty years that________any evidence that Loch Ness Monster might exist.

Thanks ____ your last letter.[ ]

Do you want to see the film Pirates of the Caribbean 4 this evening?—Pirates of the Caribbean 4? I _________ it before. Let me see, I _________ it 2 years ago.

The Acropolis was constructed in the 5th century BC ______ a high altitude above the city _____ Athena, the goddess of Athena.