I’m working ____ my computer.A. in B. at C. on
What do ________ have?
How many __________ are there in the basket?
Are there __________ tigers in the zoo?
-. Is this bus for Yancheng ? -No, it isn’t . It’s for Xuzhou . A. Hi B. Excuse me C. Sorry
-Get up , Helen ! -. A .All right B. Thank you C. Great