The sound /ŋ/ remains unchanged at the word boundaries where it is followed by a word beginning with a vowel sound as in bring it (/brɪŋɪt/) and sing us a song (/sɪŋ əs ə sɒŋ/). However, in the case of adjectives, the adding of the suffixes –er or -est to the comparative and superlative degree of the words longer and longest has changed the pronunciation of /ŋ/ into /ŋɡ/.
A、正确
B、错误