—Excuse me，may I take a :;eat here?
—________The man on the seat has already left．（）

Customer: This shirt seems a size too small for me. It’s an L.Saleswoman: I’m really sorry. ________（）

A．I think it's just the right size.
B．The color doesn't suit you.
C．It looks nice on you. 
D．It doesn't come in XL.

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Tourist：Thank you for showing me round your beautiful city.I enjoyed the tour very much.Guide：________Wish you could come again.（）

A．My pleasure.
B．You are very kind.
C．It’s very kind of you.
D．A piece of cake.

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