—Why didn’t you answer my telephone yesterday?—Sorry. I a bath.A. tookB. takeC. am taking

问题补充：

—Why didn’t you answer my telephone yesterday?

—Sorry. I a bath.

A. took

B. take

C. am taking

D. was taking

答案：

A. took

B. take

C. am taking

(答案→)D. was taking

解析：考查时态。根据语境用过去进行时。