题目内容
补全对话
A: Where is my pencil?
B: I don't know. Is it __1__ your bag?
A: No, it isn't
C: Here is __2__ pencil. Is it your pencil?
A: Is it blue?
C: Oh, sorry ,it is red.
A: Thank you all the same. My pencil is blue.
B: Here is _3___pencil. It's __4__ the floor. __5___the chair.
A: Oh, it is my pencil. Thank you very much..
B and C: That's alright .
1. in, 2a, 3a, 4on, 5under
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