1. or-and2. take-took3. when-before 4. said-saying5.look后加上for
6. Realized-Realizing7. passenger-passengers8. his-its 9. opened后加上the10. 去掉was
1. or-and2. take-took3. when-before 4. said-saying5.look后加上for
6. Realized-Realizing7. passenger-passengers8. his-its 9. opened后加上the10. 去掉was