Hearing the old man’s report, the officer _______ from his seat and said something must be done to ________ people’s living standards.

A. raised; rise      B. rose; raise     C. raised; raise         D. rose; rise

Hearing the old man’s report, the officer _______ from his seat and said something must be done to ________ people’s living standards.

A. raised; rise      B. rose; raise     C. raised; raise         D. rose; rise

Since 1949, the people’s living standard  ____ , causing a big ____ in population.

     A. has been raised; rise                              B. has been risen; raise

       C. has raised; rise                              D. has raised; rose