Rio De Janeiro, ___________the right to host the 2016 Olympic Games, will be occupied in building stadiums.
| A．winning | B．won | C．having won | D．to win |
Human life is regarded as part of nature and, as such, the only way for us to survive is to livenature.
| A． | in view of | B． | in need of | C． | in touch with | D． | in harmony with |
the students came from different countries, they got along quite well in the summer camp.
| A．While | B．Unless | C．Since | D．Until |
—Where is Peter? I can't find him anywhere.
—He went to the library after breakfast and ________ his essay there ever since.
| A．wrote | B．had written | C．has been writing | D．is writing |
-I wonderMary has kept her figure after all these years.
-By working out every day.
| A． | where | B． | how | C． | why | D． | If |
________more about Chinese culture, Jack has decided to take Chinese folk music as an elective course.
| A．Learn | B．Learned | C．To learn | D．To be learning |