I would greatly _____ it if you could send me the letter as soon as possible.

Seeing the big crowd coming towards him, he started to run down the hill，but____   and went down on his hands and knees in the melting snow.

To finish the task on time, I think we should _______ and cooperate.

 To people's great surprise, in Japan Earthquake, a young man ________ the big earthquake under the ruins where he stayed 7 days without anything to eat.

Miss White was a ______customer here until the supermarket next door opened a couple of weeks ago.