Unit 1 Meeting People
Unit 2 Thanking People
Test 1登记考（口语部分）
Unit 3 Making Apologies
Unit 4 Asking for Permission
Test 2登记考（口语部分）
Unit 5 Expressing Wishes and Congratulations
Unit 6 Making Requests
Test 3登记考（口语部分）
Unit 7 Extending an Invitation
Unit 8 Saying Goodbye
Test 4登记考（口语部分）
Audioscripts and Key
