( ) 11. ________ fresh air, people may start to feel sick. So make sure you open the windows while working.
A.For the absence of | B.In the absence of | C.In the honour of | D.In the short of |
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( ) 11. ________ fresh air, people may start to feel sick. So make sure you open the windows while working.
A.For the absence of | B.In the absence of | C.In the honour of | D.In the short of |