We have every reason to believe that our business has shown a(n) to improve.A. directionB

问题补充：

We have every reason to believe that our business has shown a(n) to improve.

A. direction

B. tendency

C. aspect

D. effect

答案：

A. direction

B. tendency

C. aspect

D. effect

解析：考查名词辨析。A方向；B趋势；倾向；C方面;D影响；句意：我们有理由相信我们的生意有了改善的趋势。根据句意说明B正确。