Were there many people at the meeting？（英译中)

How many people were present at the meeting？（英译中)

Are there any explanatory notes at the back of the book？（英译中)

They were lost at the sea, at the mercy of the wind and weather.（英译中)

There were millions of people in the square.（英译中)

There are more than five hundred people on the playground.（英译中)

There are soldiers on guard at the gate.（英译中)