On foggy days, you have to drive very ________ on the expressway to avoid traffic accidents.
Your job here is only________, for you will be removed from it when we have a proper post for you.
Look! The pond ________, and no fish in it can survive.
_______ new decision has been made that those who cheat in _______ examinations will not be recommended to colleges or universities.
We have been looking at houses, but haven’t found ________ we like yet.
Although the price has gone up by 5%, it’s still ________ the limits set by the government.