原文填空。
I my school ID card . I must it .
…
A: on , Jack !
B: Oh , no ! Where’s my bag ?
A: Hmm … is it on your desk ?
B: No . And it's not the chair .
A: Oh ! It’s on the sofa .
B: Thank you , Mom . Err … where’s the map ?
A: I think it’s in your room .