To our great surprise, Bill is no longer the naughty boy _________.
Of these two teams above, the former comes from the US; the _________ comes from England.
Readers can _________ very well without knowing the exact meaning of each word.
I found _________ hard to make myself understood by the old man.
Have you realized the part the computer has ________ in daily life?
Mr. King didn’t know __________ yesterday evening.