They volunteer________at the local hospital.
---Would you mind if I open the window?---______________, I’ve got a cold.
---You shouldn’t stay up late tonight.--- Thanks, I will go to bed earlier. ___________.
---How long __________ your parents ___________?---For about twenty years.
--- I hear local people are trying to prevent some businesses building factories here.--- Yes. They say the place ________if some factories ________ in the future.
He told me that he wasn’t used to________by plane and he used to_______ sick a lot.