— Amy, I called you yesterday evening, but nobody answered the phone.

— Oh, I _________ a walk with my mother at that time.

A. take　　　　　　 B. took　　　　　　 C. am taking　　　　　 D. was taking

— Amy, I called you yesterday evening, but nobody answered the phone.

— Oh, I _________ a walk with my mother at that time.

A. take     B. took C. am taking     D. was taking

--- Amy, I called you yesterday evening, but nobody answered the phone.

--- Oh, I _________ a walk with my mother at that time.

1. A.
   take
2. B.
   took
3. C.
   am taking
4. D.
   was taking

— Amy, I called you yesterday evening, but nobody answered the phone.
— Oh, I _________ a walk with my mother at that time

1. A.
   take
2. B.
   took
3. C.
   am taking
4. D.
   was taking