—Could you do me a favor to hand out these papers? — .
27.These natural parks aye very important for preserving animals,which would_______-run the risk of extinction.
26.— I’m sorry.I’ve left my wallet home.So I don’t have enough cash for the meal. — Take it easy._____
25.Putting the worries out of her mind,Mary turned her efforts__________the evening meal.
24.This is an exciting area of study,_______new applications are being discovered almost daily.
23.— What’s that terrible noise.David? — Oh,I forgot to tell you.The new machines in the nearby plant _______.