19. _______ rich one may be there is always something one wants.
If you don’t go there, ______.
She is already 18 years old, but she _____ as if she were still a little girl.
The time has come ______ we can make extensive use of nuclear energy.
Your performance in the driving test didn't reach the required standard—____, you failed.
—What will you do next Sunday? —Maybe do some shopping, for I ______go to school on Sunday.