问题
选择题
_________ is a famous waterfall in Canada.[ ]
A. Huangguoshu Falls
B. Detian Falls
C. Colorado Falls
D. Niagara Falls
答案
答案:D
_________ is a famous waterfall in Canada.[ ]
A. Huangguoshu Falls
B. Detian Falls
C. Colorado Falls
D. Niagara Falls
答案:D