Dogs are our good friends as they can keep ______ with us when we are lonely．

You have been sitting on my hat and now it is badly out of     _____      .

—I’m sorry I stepped outside for a smoke. I was very tired. —There is no______ for this while you are on duty. 

 No. 2 Hospital has got a good _______ for fighting against the flu with its careful and smooth organization.

 The speech from the new government is a _______ that major changes are on the way.