问题补充：
--------Have you asked somebody to repair the machine?
--------Oh, sorry, I forgot it. I for an engineer at once.
A. am going to send
B. would send
C. have sent
D. will send
答案：
A. am going to send
B. would send
C. have sent
(答案→)D. will send
解析：可联系答.案.网客服索取。
