--- Mum, I am very thirsty(口渴).--- What about some orange juice?
My grandfather is over seventy years old, he is very well because he always____.
____ it was late, the students were still studying in the classroom.
---____do you take exercise? ---Every day.
Jack works ___. He____ plays computer games after school.
Mary has a toothache(牙痛).She has to_______.