At last，we found ourselves in a pleasant park with trees providing shade and _________ down to eat our picnic lunch.

A．sitting           B．having sat       C．to sit         D．sat

At last，we found ourselves in a pleasant park with trees providing shade and _________ down to eat our picnic lunch.

　 A．sitting　 　 B．having sat　 　　　　　　　 C．to sit　 　 D．sat

At last，we found ourselves in a pleasant park ________trees providing shade(荫凉)and sat down to eat our picnic lunch．

A．for      B．from          C．of       D．D. with

At last，we found ourselves in a pleasant park ________trees providing shade(荫凉)and sat down to eat our picnic lunch．

A．for      B．from          C．of       D. with

At last，we found ourselves in a pleasant park ________trees providing shade(荫凉)and sat down to eat our picnic lunch．

1. A.
   for
2. B.
   from
3. C.
   of
4. D.
   with