问题
This book is ____ hard ____ understand.[ ]
A: too; to
B: enough; to
C: so; to
D: so; that
B: enough; to
C: so; to
D: so; that
正确答案是：
同类题型
When you do your homework,you should be __________. [ ]
My best friend visited my house while I __ __ dinner in the kitchen.
The studentsgo home until their homework .[ ]
Look at that photo, what a happy family!—Yes, it’s a photo my family.[ ]
Lily and Grace are my best friends. ________ of them are very smart.