问题详情:
Susan finally became a popular singer after she practiced ______ for years.
A) sing B) to sing C)sang D) singing
【回答】
D
知识点:动词和动词短语
题型:选择题
问题详情:
Susan finally became a popular singer after she practiced ______ for years.
A) sing B) to sing C)sang D) singing
【回答】
D
知识点:动词和动词短语
题型:选择题