—What a mistake!—Yes. I ________ his doing it another way, but without success.
I coutdn't have got to the meeting on time____________ an earlier train.
Take a taxi,___________ you'll miss your 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_____________.