Some citizens say that they have seen UFOs many times

Some citizens say that they have seen UFOs many times. 一些市民说他们看到不明飞行物许多次。这句话中并未出现任何副词，many times 属于名词短语，可以作时间状语。类似的如: this week , last month等。

he brought some cages with mice inside. He walked towards the UFOs and opened the cages. The mice came out and went aboard the UFOs. When the Aliens saw them they felt scared. "why are there so many mice?!" yelled the aliens. "We couldn't stay here anymore!" Therefore t...