7. 表示目的

15) They should be kept here ___________ this matter.

[A] informing about

[B] be informed

[C] be informed of

[D] informed of

解析：D为正确答案。

8. 表示背景和衬托

16) Known for her caricatures(漫画) of the United States society, ______________________.

[A] Peggy Brown wrote and illustrated books for children

[B] the writing and illustrating of books for children by Peggy Brown

[C] children's books were written and illustrated by Peggy Brown

[D] Peggy Brown's writing and illustrating of children's books

解析：A为正确答案。空档前是-ed分词短语，空档处应是主谓俱全句，排除B和D。从-ED分词短语中(Known for her …)可知，主句的主语是人而不是物，所以C也不对。

17) Well known as a splendid pianist in Boston, _______________.

A] we all are pleased to hear Mr. Anderson's concerto(小协奏曲)

[B] a concerto was composed by Mr. Anderson

[C] Mr. Anderson composed a concerto

[D] Mr. Anderson's concerto was composed

解析：C为正确答案。(同上)