问题描述：
( ) 19.Without the air to hold some of ...
( ) 19.Without the air to hold some of the sun's heat,the earth at night ___ ,too cold for us to live.
A.would be freezing cold B.will be freezing coldly
C.would be frozen coldly D.can freeze coldly
Please explain B & C
( ) 19.Without the air to hold some of the sun's heat,the earth at night ___ ,too cold for us to live.
A.would be freezing cold B.will be freezing coldly
C.would be frozen coldly D.can freeze coldly
Please explain B & C
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