Question

—We held a party for my grandpa’s 　　　　 birthday last night.
—You must have had 　　　　 good time.

A．eightieth; /

B．eightieth; a

C．eighty; a

D．eighty; /

Answer 1

B

試題分析：句意： ---昨天晚上我們為我的爺爺舉行了八十歲生日晚會。---你一定過的很愉快。當表達多少歲生日時，應該用相應的序數詞，表達第……個生日。eighty 的序數詞是eightieth。have a good time 是固定短語，過得高興玩的愉快。