1. he-she 2. playing后面加the 3. hear-hearing 4.helping-help 5. calls-called
6.advertisement- advertisements 7. or-and 8. people后面加were 9. or-and 10. up-away
1. he-she 2. playing后面加the 3. hear-hearing 4.helping-help 5. calls-called
6.advertisement- advertisements 7. or-and 8. people后面加were 9. or-and 10. up-away