Thank you for your timely help; otherwise we in great trouble now.
A. are
B. would have been
C. would be
D. were
网友回答
A. are
B. would have been
(答案→)C. would be
D. were
解析：考查虚拟语气。此题是由otherwise 引导的含蓄条件句的虚拟语气，根据时间now可知表示的是现在，所以它的主句为:would/could/might do,从四个选项中可知C正确，句意：感谢你及时的帮助，不然的话我们现在就处在很大的困境中了。