If it ________ for the heavy rain then, we would have arrived here ahead of time.
Brian is so kind that he often gives me a ________ when I'm in trouble.
—What do you have for breakfast? —I often have ________ or ________.
My school isn't far from here. It's only ________ walk.
— Who is in the reading room? The lights are all on.— ___________.
The conference has been held to discuss the effects of tourism _______ the wildlife in the area.