Jane said she would come here ________ 9:00 and 9:30 tomorrow morning.

He started to study hard and decided to________his whole life to the science.

Information has been put forward _______more middle school graduates will be admitted into universities.

The paper studies some ______ cases in which something somehow wrong leads to the miscommunication, so that English teachers may improve their teaching. [ ]

uld place emphasis on development and security, and develop nuclear energy on the base of security.