I don't know ________ the future holds in store for me, but I'll face the storms of life bravely.
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_____________.