题目内容
Congratulations, John! I'm really happy ________ you.
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Internet bars mustn't let people under 18 in or let anybody ________ bad things.
I can't send an e-mail. Would you please show me ________ it?
The children without parents ________ good care of by their teachers in this special school.
This painting ________ to a museum in New York in 1977.
I ________ this book for two weeks. I have to return it now.
Now the air in our town is ________ than it used to be. Something must be done to stop it.
A talk on science ________ in our school next Monday.
Not only his parents but also his brother ________ to the Summer Palace. They haven't been back.
