What color is it? — It’s _______ orange. It’s _______ orange pen.
Green is the color of _______ nature. And you can enjoy the colorful rainbow in _______ sky after the rain.
Even if we are very busy, we should spend ______ doing exercise every day.
. A look at recent trends in world fisheries reveals ________ the ocean on a global scale.
Do you know _____?— Sorry, I don’t. But I saw her just now.