In the accident, many people were killed, but _____ there were some who were unhurt.

1. A.
   at times
2. B.
   at one time
3. C.
   in a time
4. D.
   in the meantime

In the accident, many people were killed, but _____ there were some who were unhurt.

[　　]

A．a(chǎn)t times　　　　　　B．a(chǎn)t one time

C．in a time　　　　　　D．in the meantime