人教版八年级下册英语课本Unit8 Section B Self Check部分答案

11 部分答案

1. of    2. down    3. up    4. about    5. back

22 部分答案

1. joined, have read    

2. started, have learnt/learned    

3. bought, hasn't/has not listened

4. have listened,sing

5. saw,hasn't/has not had