—Couldyoutellmehowoldhewas?   —Heseemedtobe

问题详情：

—Could you tell me how old he was?

    —He seemed to be_________．

    A．at thirties     B．in thirties    C．at the thirties D．in his thirties

【回答】

D

知识点：介词和介词短语

题型：选择题