1. decide →decided 2. take∧part-time →a 3. his-my 4. after → for 5. envelope→ envelopes
6. were → was 7. easy → easily 8. 去掉to 9. hard ∧is →it 10. we → us
1. decide →decided 2. take∧part-time →a 3. his-my 4. after → for 5. envelope→ envelopes
6. were → was 7. easy → easily 8. 去掉to 9. hard ∧is →it 10. we → us