用下列单词的正确形式填空。1.He felt ________to help his mother, even if it meant leaving college.2.The whole chapter could be ________into a few paragraphs.3.You'll have to pay extra money if you________ your luggage allowance.4.Owing to the heavy________, the company is apparently on the verge of bankruptcy.5.She never enjoyed the fame that was________on her.6.________to a second language should take place in elementary school.7.People accused the governor of failing to take________measures which could have prevented the disaster.8.My secretary is perfectly________, but she doesn't have much patience.9.The figures have been________for inflation.10.Knowing a foreign language is an important skill, a major social and business________that will bring new life to the worlds of travel and entertainment.