看图，选择相应的介词填在题前括号里。
1. There are many flowers _____________ the river. 
[ ]
A. in
B. near
C. on
2. The ducks are _____________ the water. 
[ ]
A. in
B. on
C. under
3. The bridge is _____________ the river. 
[ ]
A. behind
B. on
C. over
4. The girl is _____________ the tree. 
[ ]
A. on
B. under
C. near
5. The houses are _____________ the trees. 
[ ]
A. behind
B. in front of
C. over
