Although the first part of the book is easy, the rest______.

admin2015-06-10  18

问题 Although the first part of the book is easy, the rest______.

选项 A、are difficult
B、has proved difficult
C、is supposed difficult
D、have been found difficult

答案B

解析
转载请注明原文地址:https://kaotiyun.com/show/Higc777K
0

随机试题
最新回复(0)