复合题 Directions: Read the passage carefully, fill in each blank with an appropriate word given below and put your choice in the ANSWER SHEET.

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填空题【A20】________

填空题（固定搭配， such a+名词，如此……，这样……。

填空题【A4】________

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填空题【A6】________

填空题（根据前文中online debate可推知此处应也是online debate这一搭配。

填空题【A8】________

填空题【A9】________

填空题【A10】________

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填空题【A12】________

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填空题【A15】________

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填空题【A18】________

填空题【A19】________

填空题【A20】________