Some plants are so difficult to grow that they can only ______ in a perfectly clean environment.
A. communicate B. exchange
C. survive D. afford
The family finally climbed to the top of the Mount Tai, ________.
A. exhausting B. amusing
C. exhausted D. fascinating
Only after he was taken to the teachers’ office did he admit ______ the window.
A. break B. breaking
C. broken D. to break
Her poetry is always easy and __________.
A. frequent B. accessible
C. partial D. manual
--Do you know that Carlos has been made head of the sales department?
--Yes. His honesty and hard-work ______the boss very much.
A. impressed B. disappointed
C. noticed D. shook
