—ShallIgoandbuytwomorebottlesofbeer?—No,I’vealreadybou...

问题详情：

 — 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

【回答】

C。ought to表示“(按常理，根据一般道理，一般情况下)理应，应当”。

知识点：虚拟语气与情态动词

题型：选择题