______ a volunteer is great.– I think so. Some of us want ______ volunteers for the next Olympics.

You didn’t wait for Mr. Black last night, did you——No, but we ____. He didn’t return home at all.

It wasn’t until nearly a month later _______ I received the manager’s reply

A lotof money has been _________ helping the mountain villages all over China.

When asked why he went there, he said he was sent there _____ for a space flight. [ ]