( ) My mother works _____ a bank . A. in B. on C. at
W e call a bird .A. it B. its C. it’s
That’s my sister . is a teacher .A. She B. I C. He
— eraser is this ? — Mine .A. Who’s B. Whos C. Whose
— Is that interesting story ? — Yes , it is .A. the B. a C. an
Look these animals .A. to B. at C. in