问题补充：
----I thought I asked you to fix the radio.
----Oh, I am sorry. I it right away.
A. am to do
B. will do
C. was about to do
D. am going to do
答案：
A. am to do
(答案→)B. will do
C. was about to do
D. am going to do
解析：句意：--我原以为我请你修收音机了。--哦，对不起，我马上就去。从right away“马上，立刻”，说明是用一般将来时，C是过去将来时，AD表示计划，打算，B.will do表示临时决定，选B。
