The Confucius Institutes aim at promoting the Chinese language and culture overseas through Internet or _____ courses.
He always accused himself, since he believed________(他让妻子和孩子吃了很多苦头).
听力原文：Good morning, Mrs Nelson, Mr Clark from Springfield Houseware is expecting you in at the moment. You also have to go to your insurance agent at 10:30 this morning. Then you'll just be in time for the lunch appointment with Mr Chen from China.
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Only under special circumstances ________ (才允许大一学生参加补考).
Finance is becoming increasingly important in tile environmental field, largely because of______.
Many states provide funds for voluntary cleanup programmes to ______brownfields.