单项选择题

Humans should not develop their economy at the ______ of the ecological environment.

A. destruction
B. pollution
C. expense
D. mercy
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单项选择题
It ______ you didn’t get the ticket. The play wasn’t good anyway.
A. is all right
B. is just as well
C. doesn’t matter
D. serves you right
单项选择题
When automation is introduced into the factory, all the work done by hand will ______ the assembly line.
A. give way to
B. take the place of
C. have a say in
D. be contributed to
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