Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  B. when             C. which             D. since

Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  B. when             C. which             D. since

Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  B. when             C. which             D. since

 Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  B. when             C. which             D. since

Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  　　　 B. when             　　　C. which             　　　D. since

Because of the financial crisis, days are gone ________ local 5-star hotels charged 6,000 yuan for one night.

A. if　　　　　　 B. when　　　 　　　 C. which　 　　　　 D. since

Because of the financial crisis, days are gone _____ local 5-star hotels charged 6,000 yuan for one night.

A. if　　 B. when　　 C. which　　 D. since

Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.
A. if                  B. when             C. which             D. since

Because of the financial crisis, days are gone ________ local 5-star hotels charged 6,000 yuan for one night．

1. A.
   if
2. B.
   when
3. C.
   which
4. D.
   since