宾语
It was the color of the material _____ he was surprised at.
It was the color of the material \_\_\_\__ he was surprised at.
The reason _____ he gives for not coming is unacceptable.
The reason \_\_\_\__ he gives for not coming is unacceptable.
The speed _____ light travels is very high.
The speed \_\_\_\__ light travels is very high.
On his way home, he suddenly heard his name _____.
On his way home, he suddenly heard his name \_\_\_\__.
We think it possible _____ the local government will be able to solve the housing problem.
We think it possible \_\_\_\__ the local government will be able to solve the housing problem.
_____ all the inventions have in common is _____ they have succeeded.
\_\_\_\__ all the inventions have in common is \_\_\_\__ they have succeeded.
The puzzle was so difficult that I gave up it in the end.
The puzzle was so difficult that I gave up it in the end.