______it is to jump into a pool or go swimming in the sea when you visit Hawaii!
Never _______ forget the days when _______ together with you.
I coutdn't have got to the meeting on time____________ an earlier train.
________ 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_____________.