请教大全section4-25

25.   Federal incentives now encourage investing capital in commercial office buildings despite vacancy rates in existing structures that are exceptionally high and no demand for new construction.

(A) investing capital in commercial office buildings despite vacancy rates in existing structures that are exceptionally high and

(B) capital investment in commercial office buildings, even though vacancy rates in existing structures are exceptionally high and there is

(C) capital to be invested in commercial office buildings even though there are exceptionally high vacancy rates in existing structures with

(D) investing capital in commercial office buildings even though the vacancy rates are exceptionally high in existing structures with

(E) capital investment in commercial office buildings despite vacancy rates in existing structures that are exceptionally high, and although there is

正确答案是b，可是我弄不明白there is 这种句型怎么用，xdf说见there be句型定错，且there应指代地点，请指教，谢谢了

XDF的这个说法有点绝对。建议LZ可下载大全注释或查讨论连接，如仍然未能解决后发帖询问，并在标题中标明已查讨论。感谢配合。

293, sec04-25

A) despite 不能准确表达复杂的意思。
B) best。
C) encourage capital to be invested表达不对; there are句型没有准确表达意思。
D) with no demand for new construction在句中无法产生合理的逻辑意思。
E) despite 不能准确表达复杂的意思。

补充：

encourage一般用法：1)encourage 名词; 2) encourage sb. to do sth.