—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there.
—I really should have gone with you but I on some remaining problems.
A. worked
B. was working
C. would work
D. would have worked
网友回答
A. worked
(答案→)B. was working
C. would work
D. would have worked
解析：可联系答.案.网客服索取。