The two friends are ________ related like the lips and teeth, and you can often see them stay ________ together, hand in hand
________ is quite natural,a beginner can't read the books written in English very quickly.
—Do you regret paying 500 dollars for your necklace?--No, I would gladly pay__________ for it.
__________ it rain, the crops_____________.
--You forgot your keys when you left home in the morning.--Good heavens,___________.
It is impossible for____________ little room.