一．单项选择。（15分）
( ) 1. We can’t live _________ air or water.
A. with B. without C. if no D. haven’t
( ) 2. There are some birds _______the tree and also some apples _____
the tree.
A. on, on B. on, in C. in, on D. in, in
( ) 3. Two ______ trees have been planted along t he lake since 1998.
A. thousands of B. thousand of C. thousands D. thousand
( ) 4.It’s a fine day. Let’s have a walk ______ the sunlight.
A. of B. with C. in D. under
