——Hi, Steve, you look tired.——I am tired. I ______ the living room all the afternoon.

.Don’t argue about it. I will _________ the matter and then tell you who is right.

Every possible means _______ to prevent the crash , but the computer doesn’t still work．

The boss insisted that every minute ______ made full use of ______ the work well.

_____ the government agrees to give extra money , the theatre will have to close.