is your family going to BeijingExpo（北京世园会），Lucy？
In August．（ ）
| A． |
How |
B． |
When |
C． |
Where |
D． |
Why |
is your family going to BeijingExpo（北京世园会），Lucy？
In August．（ ）
| A． |
How |
B． |
When |
C． |
Where |
D． |
Why |
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