How is it going with your new project — After a _______ working, we have finished _______ of the whole work.

35．—Oh，I just realized that I don’t have any money． —You don’t？Well，don’t worry，I________lend you some．

Helping others is a habit，______you can learn even at an early age.

This is the only one of the books on space ___.

I catch a cold, I have pain in myback