Perhaps it is true that nobody in the world knows exactly how the earth _____.A. came up B. came out C. came to power D. came into being
______ you I owe a thousand apologies ______ having doubted your ability.
A good solution to the problem _________at the meeting.
– I’m sorry I stepped on your toe; it was an accident. – It wasn’t! You did it ______.
As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.
Young adults ______ older ones are more likely to prefer sports and become enthusiastic sports fans.