题目内容

In a binary sort tree, new nodes are inserted as always leaf nodes.

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Can you tell me how to ____________an invitation without hurting people’s feeling?

A. accept
B. say yes
C. decline
D. say no

Nancy：Would you like to join me for dinner? Windy：you for _ me. I’d love to, but…

A. Thank…invite
B. Thanks…invite
C. Thanks…inviting
D. Thank…inviting

Nancy：Do you fancy going out for a walk? Windy：I’d love to, but I’m afraid ______________.

A. I won’t
B. I won’t be able
C. I won’t be able to
D. I won’t go

Nancy：Would you go shopping with me? Windy：I’m sorry. I have another _____________with my colleague (同事).

A. date
B. dates
C. appointment
D. appointments