Liu Yang is the first Chinese woman astronaut has ever traveled in space.
The wind was too strong, so he the car windows.
I didn’t know the new word in the text, so I had to the word in a dictionary.
The project is so designed that once _______ nothing can be done to change it.
There was a man crying over there.He _______ himself.
______ a good result,the professor decided to do the experiment once more.