3. My flight to Hongkong was ______ because of a mechanical problem. (A) expired(B) misplaced(C) delayed (D) unboarded

11. Because many hackers now are sophisticated financial criminals, their programs are more likely to mutate ______ the signature they leave on one person's computer might look nothing like the signature left on someone else's machine. (A) as quickly as (C) as quickly as possible (B) so quickly that (D) so quickly for