I hope ______ a role in ____the result.
——________do you go to the dentist? ——Let me see, twice a year, maybe.
I’m not good at playing ________ piano, but I can play ________ volleyball very well.
---May I have ________ new books? ---Sorry, there aren’t ________.
Mary is a ________ girl, and she can sing ________.
---You haven't been to the mountain, have you ? ---_______.I'll go there next week. It will be the first time for me.