--Jack, I’d like to have your opinions about my written report.-- . But I have one suggestion.
8.Without your kind help, we ______ in the experiment.
7.Since you are here, you ____ as well stay here for long.
6.What ______ great progress you have achieved in such ____ short time!
5.The little kid can help himself _____ his favorite toys.
4.My hands are dirty. I ______ the wall the whole morning but haven’t finished yet.