We had to be patient because it some time we got the full results.A. was; sinceB. had b

问题补充：

We had to be patient because it some time we got the full results.

A. was; since

B. had been; since

C. was; before

D. would be; before

答案：

A. was; since

B. had been; since

C. was; before

(答案→)D. would be; before

解析：固定句式：It be 一段时间 before…一段时间以后某事才发生；如果before后面使用一般现在时，前面的主语使用将来时；如果before后面使用一般过去时，前面也使用一般过去时；句义：我们不得不耐心等待，因为一段时间以后我们才能得到完全的结果。本句前面都使用了过去的时态。故D正确。