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--- You didn’t go to the party last night, did you?                    

--- I do wish I ___ there.    

Teachers required that all the students ___ their homework all alone.     

Scientists have many theories about how the universe_____.

You cannot be more careful when crossing the street, or you may ___ by cars.   

Word has come ___ a 100-million-year-old dinosaur fossil was recently discovered on a mountain in Ningcheng County, Chifeng.                            

A devastating(毀滅性的) mudslide in northwest China's Gansu Province earlier in August killed at least 1,467 , with 298 still ___ .                    

After his journey abroad, Richard Jones returned home, ___.

--- Tomorrow we’ll go hiking in the mountain to experience nature.

---- ___ it rains heavily when we are still halfway?

At the foot of the mountains ____ a tower built in the Ming dynasty.        

The earliest English ___ was written in a kind of English that is now difficult ___.