The first color TV set was considered by most people________this century.
A. having been invented it B. one of whom invented
C. who had invented it D.to have been invented
The first color TV set was considered by most people________this century.
A. having been invented it B. one of whom invented
C. who had invented it D.to have been invented
D
动词consider 的非谓语考查形式。符合“consider+宾语+宾补”结构，根据句意判断此句的宾补在consider之前已经发生，故用不定式的完成式。