Neither of us knew what happened they told us about it.
Yangtze River is one of ______rivers in the world.
--Would you like some chocolate? --No, thanks. I ______ eat chocolate. It is bad for my health.
--Why not go to see the film? --Because I hear there isn’t _______.
--______ do you stay up late? -- Never. I always go to bed early.
--_____ did Dave go on vacation? -- He went to the mountains.