---Must we finish our homework in the classroom now?
---No, you _______．
---She has tried many kinds of medicine.
---But ______ has any effect on her disease.
---I'm going out tonight.
---Well, I'd rather you ______.
---I had a chance to be sent to Africa to attend a meeting on the environment protection．
---Well, would you please tell me about your ______ there?
---______?
---Nothing serious, but a bit tired．
---What are you mailing, Ryan?
---A textbook ______ a new method of teaching physics．I want my friends to take a look at it．
---Each of the students, working hard at his or her lessons, ______ to go to college．
---So do I．
---I would like ______ it．
---So would I, but we arrived too late．
--- We need a person badly to be in charge of this design．
--- ________ the newcomer have a try?