2.78÷1.2，商是2.3时，余数是（   ）

选出正确答语。

① Where is my bag?____                            a. I'm from Canada.

②Is your pencil box on the chair?____       b. OK!

③What's this?____                                  c. It's in your desk.

④Where are you from?____                       d. No, it isn't.

⑤Let's go to school.____                         e. It's a toy bear.