—When__________ and visit our exhibition next month?— When_______, I will let you know.
It is believed that _____ European scientist invented _______.
The shop has been standing so ______ that a thief finds nothing to steal.
The medical reform in that country turned out to be________failure,but as we know,success often comes after ________failure.
I guess we’ve already talked about this before but I’ll ask you again just________.
Mothers holding jobs outside the home should have________schedules to make it easier to care for their children.