1, the main composition of life is the quality of life, so it is to improve life;
2. Work is a noun, and the operation of this noun can be changed, so it is the change of work;
3, the system is a kind of treaty, can be modified, so it is to modify the system;
4. History is a record of past events and can be tampered with, so it is tampering with history;
5. A method is an idea or plan, which can be improved, so it is an improved method;
6. Rent is a kind of price, which can be modified, so it is to modify rent.
Extended data:
Answer skills of combining words to fill in the blanks;
1 First, you need to find the attributes or characteristics of the nouns that follow;
2. Then guess the operations that can be done on its attributes, and there are such operations;
Example: Fill in the blanks with the word "see"
Teacher Wang is ill, but he still insists on giving us lessons. Everyone suggested that he have a rest. He refused (firmly) and said (firmly), "Nothing." Seeing this scene, Xiao Fang, who was originally (strong), was moved to tears at the moment.