The police ________ the murderer everywhere when he suddenly turned up in a theater.

1. A.
   is searching for
2. B.
   were searching for
3. C.
   are searching for
4. D.
   were searching

The police ________ the murderer everywhere when he suddenly turned up in a theater.

[　　]

A. is searching for 　　　　　　　　　　 　　　　   B. were searching for

C. are searching for    　　　　　　　　　　　　    D. were searching

The police________ he murderer everywhere when he suddenly turned up in a theater.

A. is searching for 　　　　　　　　　　 　　　　   B. were searching for

C. are searching for    　　　　　　　　　　　　    D. were searching