We need to think outside of box we are to come up with something really new.A. so thatB.

问题补充：

We need to think outside of box we are to come up with something really new.

A. so that

B. as long as

C. once

D. if

答案：

A. so that

B. as long as

C. once

(答案→)D. if

解析： if在本题中引导条件句。think outside of box表示“跳出惯性思维来思考问题”。come up with想出主意、办法或某个问题的解决方案。句意为：如果我们要真正想出一些新的主意就要跳出惯性思维去思考。