decades of living under oppression,the people of the Arab world are rising up to rebel ______ their ruler.

Amy couldn’t stop _________ when her friend told her the funny joke.

We learn the sayings “Use it ______ lose it” and “Practice _______ perfect”.

nation uses nuclear weapons will engage the whole world in war.

The Great Pyramid is said to ________by aliens. Is there a chance that this might be true? [ ]