( )Please turn the light. A. at B. in C. on
Put the book the desk . A. on B. up C. after
She works a bank . A. on B. of C. in
Don’t worry your things . A. on B. about C. at
These are your pens . Put away . A. it B. they C. them
Don’t leave your things this . A. on B. like C. at