问题
选择题
This book is ____ hard ____ understand.[ ]
A. too; to
B. enough; to
C. so; to
D. so; that
答案
答案：A
搜题请搜索小程序“爱下问搜题”
This book is ____ hard ____ understand.[ ]
A. too; to
B. enough; to
C. so; to
D. so; that
答案：A
