问题详情:
These problems may lead to more serious ones if________unsolved.
A.making B.remained C.keeping D.left
【回答】
D
知识点:非谓语动词
题型:选择题
问题详情:
These problems may lead to more serious ones if________unsolved.
A.making B.remained C.keeping D.left
【回答】
D
知识点:非谓语动词
题型:选择题