The Great Wall istourist attraction that millions of people pour in every year.
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— Alice told me you called yesterday.— Yes, I had a problem with Jane, ___________I thought you could help me with, but you were not in.
If anyone happens to drop in while I am out, _________ him or her leave a message.
With a lot of problems __________, the new government is now having a hard time.
Though I’ve tried very hard to improve my English, by no means ___________with my progress.
Science and technology have in important ways __________ the improvement of agricultural production.