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

试题分析：句意： ---昨天晚上我们为我的爷爷举行了八十岁生日晚会。---你一定过的很愉快。当表达多少岁生日时，应该用相应的序数词，表达第……个生日。eighty 的序数词是eightieth。have a good time 是固定短语，过得高兴玩的愉快。