gwfd28~~~~21

pandaeyes

Q21:

According to entomologists, single locusts are quiet creatures, but when locusts are placed with others of their species, they become excited, change color, vibrate, and even hum.

 

1. when locusts are placed with others of their species,（指代明确）

2. when placing them with others of their species, then
3. locusts, when placed with others of their species,
4. placing them with others of their species,
5. placed with others of their species, then（是then的问题么）

carolinelmf

是！

s7s7

E。placed with others of their species, then（是then的问题么）

偶猜想：分词结构放在中间，很难判断是修饰前面还是修饰后面，就像unlike放在中间

所以看起来A更加清晰，虽然when往往是罪魁，在这里还应该是良民

[此贴子已经被作者于2007-6-8 15:10:01编辑过]