The fact suggested that the water _______ and to prevent this from happening again, John Snow suggested that the source of all the water supplies ______.[ ]

Only by bringing in new management, I guess, _______ our hotel from bad to worse.

How are you going to spend your free time —Why not ______ a hobby, like collecting cards

“Shall Mary come and play computer games?” “No, _______ she has finished her homework.”

Stephen Hawking believes that earth is unlikely to be the only planet ______ life has developed gradually[ ]