______ is a possibility______ Jim will get first place in the long jump.

Surfing first started on the islands of Hawaii, didn’t it?–Yes, but now it ______ by people all over the world.

_____ many times, but he still doesn’t know how to operate the machine properly.

Which would you like,tea or coffee? — Either _____ OK, but I prefer coffee _____ milk. [ ]

Patrick is interested in animals, so he enjoys _ every Saturday working in an animal hospital.