一单选（每题1分，共20分）
1. There is ___elephant there. Near ____ elephant, there is ___tall tree.
A. an; an; a B. a; the; a C. an; the; a D. an; the; the
2. There ____ some bread on the table.
A. is B. be C. am D. are
3. I usually go to work _____ _ bike but today I go to work ______ a bus.
A. by, by B. in, in C. by, on D. on, by
4. He likes playing ___piano, but he doesn’t like playing ___chess.
A. the; the B. the; / C. /; / D. /; the
