Jack is not very decisive, and he always finds himself in a ________ as if he doesn’t know what he really wants to do．

Millions of people are still homeless．Besides, there isn’t the most basic ____ from the Red Cross．

A sharp _________in production wouldn’t have been seen but for the advanced techniques.

Some famous singers live on the ___ from their record sales.

In part of China, some people still have difficulty gaining        to social services.