John returned with two workers with help we finally got the car out of the mud.A. whoseB.

问题补充：

John returned with two workers, with help we finally got the car out of the mud.

A. whose

B. their

C. which

D. that

答案：

(答案→)A. whose

B. their

C. which

D. that

解析：句意：约翰带着两个工人回来了，在他们的帮助下，我们最后把车从泥里面弄出来。这里使用了定语从句，先行词是workers，定语从句中的help缺少定语，用whose引导定语从句，所以选A。