A．chin
B．bite
C．alive
D．side

A．native speakers, like foreign students, also try hard to learn their language
B．communication is the primary goal of language learning
C．native speakers will ignore their mistakes
D．everyone makes mistakes in speaking a strange language

A．mistakes are not important in the process of learning a language
B．learners are often very afraid of making mistakes
C．making mistakes can help the learner discover the roles
D．native speakers often do not tell foreign language learners about their mistakes