Is your pen pal Australia or Canada?

Where’s my football?—It’s______the door.[ ]

_________ film do you prefer, Lost in Thailand or Life of Pi, Madee?—Lost in Thailand. I like comedies because they often make me laugh.

.I think _________ of the materials I listened to at the beginning of the exam ____ easy.

It was not immediately obvious _____ water was to be fundamental to the development of life.