Hamburgers are ________ through a window in the restaurant and then they are handed out through the window to the waiting customer．

1. A.
   booked
2. B.
   ordered
3. C.
   demanded
4. D.
   Told

Hamburgers are         through a window in the restaurant and then they are handed out through the window to the waiting customer.

A．booked              B．ordered             C．demanded               D．told