It is said that two man-made structures are clearly visible from space. One is the Great Wall of China, andis Japan's Kansai International Airport.
The reason _______ his going to Britain was ______ he got a new job there.
_____ with the size of the whole earth, the biggest ocean does not seem big at all.
People often use plastics to ______ wood or metal.
He convinced me ______ the difficulty of the work.
.If you are unable to attend the interview, for __________reason, you should inform us immediately.