—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
The openair celebration has been put off______ the bad weather.
Two thirds of the work ______done by Jimmy, and ______was done by Nancy.
It is not ______you have said but what you have done ______made us very disappointed.
If you want to be ______ success, please remember that failure is the mother of ______ success.
The style of painting ______ by the artist is hard ______.