_____ is the train station from the post office, do you know?—About twenty minutes’ bike ride.[ ]

What do you think of our plan?—I think it’s reasonable. But _____ Bob, what we did is a waste of time.[ ]

This kind of paper ______ nice and soft．

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

He ________ to swim when he was five.