해설과 더불어 해석까지 해주시면 감사 ^^*

자고 일어나면 되어 있을거라 믿습니다.



1. Their failure to act decively proved to be ____ .



    a. slow   b. guilty  c. costly   d. priceless



2. Commercial ______ on the river has decreased by more than half in the last 20 yeras.



    a. tax    b. rates    c. traffic   d. interest



3. A smoke detector on the seventh floor is ____ with saving the lives of more

                                                                             than 60 apartment residents.

    a. alarmed  b.signaled   c.believed   d.credited



4. Affordable apartments are scarce in the trendy downtown ______ of SoHo.



    a. club   b. housing   c. resident   d. neighborhood