People’s working efficiency usually decreases more or less when the temperature _________ 35℃ or even higher. 

A. approaches                   B.raises              C.draws                          D.drops

People’s working efficiency usually decreases more or less when the temperature _________ 35℃ or even higher.

1. A.
   approaches
2. B.
   raises
3. C.
   draws
4. D.
   drops

People’s working efficiency usually decreases more or less when the temperature _________ 35℃ or even higher. 

A. approaches            B.raises             C.draws                     D.drops

People’s working efficiency usually decreases more or less when the temperature _________ 35℃ or even higher.