看图，完成对话。
（1）A : Whose ________ is this?
B : It's Helen's.
（2）A : Whose ________ are they?
B : They're Mike's.
（3）A: I'd like ________ ________ ________ ________ , please.
B: Here you are.
（4）A: The ________ are too small.
B: You can try this pair on.
（5）A: How much is the ________ ?
B: Sorry, I don't know.
（6）A: What's the time?
B: It's ________ ________ .
（7）A: What time do you go home?
B: I go home at ________ ________ .
8.A: ________ ________ ________ now.
B: OK.
（9）A : Shall we ________ ________ ?
B: Good idea.
（10）A: It's ________ ________ .
B: Yes, it's time to ________ ________ .
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