Today Xiao Li is absent the class. He ill.A. for; could have beenB. with; should have bee

问题补充：

Today Xiao Li is absent the class. He ill.

A. for; could have been

B. with; should have been

C. at; could have been

D. from; may have been

答案：

A. for; could have been

B. with; should have been

C. at; could have been

(答案→)D. from; may have been

解析：第一空为固定短语：be absent from 缺席，不在，第二空考查情态动词表推测的用法，对过去可能性的推测用may have done，所以选D。