A grasshoopper is larger than [U]normal[/U] for a member of insect class, its abdomen can be up to two inches in length, as opposed to the one-inch-long abdomen of the average insect
A normal
B is normal
C was normal
D they normally are
E they are normally
the answer is B, why not A ??作者: justag 时间: 2003-1-1 16:43