Question

【题目】A villager, who __________ last night, claimed to __________ a UFO flying across the sky.

A. had stayed up; see

B. stayed up; see

C. stayed up; have seen

D. has stayed up; have seen

Answer 1

【答案】C

【解析】句意:一位村民昨天晚上熬夜，声称看到一个不明飞行物飞过天空。last night表明第一个空应该使用一般过去时。看到不明飞行物飞过天空发生在claim之前，故使用不定式的完成式。