It is essential that these applicationforms ______ back as early as possible

It was with great excitement one morning in July ____ the young man got the news that he was admitted to the university of his choice.

I’m not a little tired today after giving the room a thorough cleaning and I have never had ____ today.

They will fly to Washington, ______they plan to stay for two or three days.

When you phoned me,I was having ameeting,otherwise I_______your call.