4 Choose the underlined part that is INCORRECT and correct each error. (4点×6) (1) Linguistics systematically studies the structure and meaning of language by examine data and doing experiments. (\k7★ &) ( C ) → ( examing 数日 以前は ) (2) It used to take several days to travel by ship from New York to London, but jet 数時間 a b airplanes are now enough fast to make the trip in several hours. [共立女子大 改] ( ) → ( ) (3) When he went abroad on business last week, he couldn't make himself a ¿understand in English. くつかの 〔二松学舎大改〕 〔 ) → ( (4) Knowing several languages are helpful if you want to work in Europe. a [d] → (te werking, (5) I am sorry to have kept you waited. I should have left home ten minutes earlier. [広島修道大〕 〔 〕→( ) (6) Tokyo introduced its own lodging tax in October, charged 100 to 200 yen per b a person. 〔関西外国語大 改〕〔 〕→( )