问题
选择题
Service was included in the bill, so you _______ the waiter. It was a waste of money.
A．will not tip
B．may not tip
C．needn't have tipped
D．mustn't have tipped
答案
答案：C
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Service was included in the bill, so you _______ the waiter. It was a waste of money.
A．will not tip
B．may not tip
C．needn't have tipped
D．mustn't have tipped
答案：C