There many tall trees around the lake a few years ago.
| A． is | B． are | C． was | D． were |
We are offering prizes ________ best pictures.
A.to B.for C.with
If you are ________ the right place ________ the right time,take a picture.
A.in；at B.at；in C.at；at
Please connect the digital camera ________ the computer.
A.to B.into C.with
There is someone at home because the lights are ________.
A.out B.on C.not
Mary,please show ________ your picture.
| A．my | B．mine | C．I | D．me |