–How can I operate this machine?—Well, just refer to the _______.

She dreams of ___________ the ocean some day, where she can enjoy all kinds of fish and underwater plants.

The window of our room can give us a good view of the street, in which case we witnessed the accident as if we were at the _____.

. Probability is the mathematical study of the _____ of an event’s occurrence.

I’m afraid I haven’t got a very good ________ of direction. I always get lost in the city.