— Will you go to the annual meeting to be held in Sweden from the 26-30th of August 2008?— That depends on _______ I am invited.

The research is so designed that once________nothing can be done to change it. 

From his ____ voice on the phone, I know everything is going under way. 

The jug ____ easily．Be careful how you handle it．

 I don’t think _____ possible to master a foreign language without much memory work.