问题详情:
Once ______ as an economic resource, the River Thames was polluted, ______ disease and death everywhere.
A. known; caused B. knowing; to cause C. known; causing D. knowing; causing
【回答】
C
知识点:非谓语动词
题型:选择题
问题详情:
Once ______ as an economic resource, the River Thames was polluted, ______ disease and death everywhere.
A. known; caused B. knowing; to cause C. known; causing D. knowing; causing
【回答】
C
知识点:非谓语动词
题型:选择题