一、
1、 |
2、 |
3、 |
4、 |
213 |
321 |
132 |
312 |
三、1、A:Are they in Grade Three?
B:Yes, they are.
A:What class are they in ?
B:They are in Class Two.
2、A:Are they in Grade Five?
B:Yes, they are.
A:What class are they in'l
B:They are in Class Four.
3、A:Are they in Grade Six?
B:Yes,they are.
A:What class are they in?
B:They are in Class One.
4、A:Are they in Grade Four?
B:Yes,they are.
A:What class are they in?
B:They are in Class Three.