--- Let’s go shopping, shall we?
--- Wait a minute. I my housework and it won’t take long.
A. just finish
B. am just finishing
C. have just finished
D. am to finish
网友回答
A. just finish
(答案→)B. am just finishing
C. have just finished
D. am to finish
解析：考查时态：--我们去购物好吗？－等会，我马上就完成我的工作了，不会太长时间的。这里用现在进行时表示“即将，马上要做…”，D项be to do也是将要做某事，将来时态，但是表示的是“计划，安排”所以要选B。