问题
选择题
25. – Tom, it's too late. Our son ________ be back.
– Don't be anxious. I dare say he ________ have some extra work to do.
A．can; must
B．will; might
C．should; must
D．must; may
答案
答案：C
25．C(解析：考查情态动词。should "按理说，应该” must “肯定”，选C。)