—I think I should wear a dress instead of this jeans.—It’s just a small informal party, so you don’t have to ___________.
_______by the teacher, Bob has made great progress this term.
I firmly believe, as long as Igreat efforts, my dream will come true sooner or later.
Peter will give me five sweets an apple, but in fact I don’t have a sweet tooth.
— The traffic is too heavy. Would you like me to help you the street? — That’s very kind of you.
Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.