Excuse me， Mr．Wang． Do you know ？ Yes． It's on May 20th．（ ）
A．when is the school trip
B．how we can go there
C．when the school trip is
Excuse me， Mr．Wang． Do you know ？ Yes． It's on May 20th．（ ）
A．when is the school trip
B．how we can go there
C．when the school trip is
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