问题
选择题
— Shall I go and buy two more bottles of beer?
— No, I’ve already bought twenty. That _____ be enough for us two.
A．can
B．may
C．ought to
D．might
答案
答案：C
选C。 ought to表示“(按常理，根据一般道理，一般情况下)理应，应当”。
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