On their arrival on the airport, ___________.

　 A. a group of children welcomed them with flowers

　 B. bunches of flowers were presented to them by a group of children

　 C. they were presented with flowers by a group of children.

　 D. they were welcome by children with flowers

5.  On their arrival on the airport, ___________.

   A. a group of children welcomed them with flowers

   B. bunches of flowers were presented to them by a group of children

   C. they were presented with flowers by a group of children.

   D. they were welcome by children with flowers

5.  On their arrival on the airport, ___________.