阅读下面一篇短文,从每题所给的A、B、C三个选项中选出能填入空白处的最佳选项。Harry is a student. Harry's mother 1 a new sport hat for him. It's brown— Harry's favorite color. His shoes, ruler and eraser are 2 , too. After school, Harry goes back home.
" Where is your new 3 ?" asks Mom.
" Oh! My hat!" says Harry."4 in the classroom. I must go there!"
Then Harry goes to the 5 and look for(寻找) the hat. 6 he can't find it." Oh,I 7 my new hat," says Harry. And he goes back home.
At home, Harry's mother says," Do you want to call your teacher 8 help?"
And then Harry opens(打开) his schoolbag to get(拿) his 9 . He finds his new hat!
" Look, Mom!" says Harry." My hat is in the schoolbag! It's not lost."
" Great!" says Mom." But you must be careful(小心的)!"
" You' re 10 , Mom." says Harry.