---This passage is difficult for me. Could you please explain it to me?---I’m afraid I have to say sorry, but the book is ________ my understanding.
It is __________ you do rather than __________ you say __________ matters.
–Where did you get to know her? –It was on the farm __________ we worked.
__________ we had read your letter __________ the true state of affairs.
To his disappointment, the opinion he tried to stick __________ wrong.
–Excuse me, Madame. Is this plane __________ take off soon? –Oh, yes. In five minutes.